Manuale d’uso / di manutenzione del prodotto 4300T del fabbricante Polycom
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User Guide V 2 IU 4300T Converged Network Appliance October 2005.
Polycom Inc. 4750 Willow Road Pleasanton, CA 94588-2708 USA No part of this document may be reproduce d or transmitted in any form or by any means, el ectronic or mechanical, for any purpose, without the express written permission of Polycom, Inc. Under the law, reprod ucing includ es translating into another language or format.
Conte nts 1 Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1 The 4300T Converged Network Appliance . . . . . . . . . . . . . . . . . . . . . . . . . 1–1 T1 Wide Area Network (WAN) Access Router . . .
User Guide V 2 IU 4300T Converged Network Appliance 2 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–13 Configure the LAN Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Conte nts 3 Traffic Management Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–38 Enable Traffic Shaping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–39 Optionally enable priority IP addresse s .
User Guide V 2 IU 4300T Converged Network Appliance 4 Passive Voice Call Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5 Accessing Troubleshooting Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5 Verify Registered Voice an d Video Devices .
Conte nts 5 Network Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–16 VoIP ALG – H323 Settings . . . . . . . . . . . . . . . . . . . . . . . Appendix–17 Endpoints . . . . . . . . . . . . . . . . . . . . . . . . .
User Guide V 2 IU 4300T Converged Network Appliance 6.
1 - 1 1 Introduction The 4300T Converged Network Appliance The V 2 IU 4300T is an intelligen t, all-in-one ne tworking solution for enter prises and service providers. It reduces costs by simplifying the deployment, management and security of converged voice, video and data networks.
User Guide V 2 IU 4300T Converged Network Appliance 1 - 2 Call Quality Monitoring Passive call quality monitoring for e a ch SIP or MGCP voice call includes statistics needed to enforce SLAs an d resolve networking problems that negatively affect call quality.
Introduction 1 - 3 — Active call count indicators Front Panel LEDs The LEDs display real-time inf ormation fo r key functions of the 4300T. They are as follows: LED Label Activity Description Power Off Power switch off (or no power from wall) Green Power is supplied to the unit S t atus Off Self-tests have failed.
User Guide V 2 IU 4300T Converged Network Appliance 1 - 4 Back Panel The back panel of the 4300T contai ns the following (left to right): • Power connector • Erase button • Power connector • 4.
Introduction 1 - 5 This port is used for debug or local diagnostic purposes only. Primary configuration of the 4300T is performe d from a web browser as c overed in Chapter 3 .
User Guide V 2 IU 4300T Converged Network Appliance 1 - 6.
2 - 1 2 Getting Star ted Physical Installation The 4300T is designed for desktop, rack or wall-mount installation. Please observe the following guidelines when installing the system: • Never assume that the AC cord is disconnected from a power source.
User Guide V 2 IU 4300T Converged Network Appliance 2 - 2 Install two screws 4 14/16 ” horizontally apart on a wall or other vertical surface. The screws shou ld protrude from the wall so that you can fit the appliance between the head of the screw and the wall.
Getting Started 2 - 3 4. Continue to configure the system using the information provided in Chapter 3 . Note For secure management of your network, be sure to change the default userid and password as described under Change the Administratio n Password .
User Guide V 2 IU 4300T Converged Network Appliance 2 - 4.
3 - 1 3 Configuring the 4300T The 4300T is a flexible, easy to use c onverged network appliance that provides many critical networking functions for IP based voice, video and data.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 2 Configuration Guide For IP Centrex Applications A typical 4300T installation for an IP Ce ntrex application requires no external router or firewall.
Configuring the 4300T 3 - 3 • NAT/PAT translation for IP phones and PC ’s. This allows a single public IP address to be used on the WAN link to repr esent all of the private IP addresses assigned to the LAN IP phones and PC’s. • Static NAT entries.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 4 T raffic Management Configuration enable traffic shaping Y es enable Call Admission Control Optional V oIP Survivability enable V oIP su rviva.
Configuring the 4300T 3 - 5 Configuration Guide For Station Side IP PBX Applications Most private enterprise VoIP networ ks use an IP PBX at the corporate headquarters location to provide vo ice switching between headquarters, branch offices and the PSTN.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 6 • Traffic shaping and priority queuing t o guarantee high quality voice traffic. These mechanisms protect vo ice and data traffic from contending for the same network resources to guarantee l ow latency and the highest c a l l q u a l i t y p o s s i b l e f o r V o I P t r a f f i c .
Configuring the 4300T 3 - 7 Configuration Guide For T r unk Side IP PBX Applications Companies with existing IP-based WAN links for inter-office voice and da ta communications can use the 4300T as a tr affic shaper to meet the stringent jitter, latency and packet loss requiremen ts for toll quality voice.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 8 The 4300T performs WAN/LAN IP routin g and traffic management functions in this application. In particular, it provides prioritization to ensure voice packets are not delayed or dropped whil e allowing data traffic to use all remaining bandwi dth.
Configuring the 4300T 3 - 9 Configuration Guide For Hosted Video Applications A typical 4300T installation for hosted vi deo applications is depicted in the diagram below. In this scenario, the 4300Ts are used to connect all of the video endpoints to the Gatekeeper.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 10 • Traffic shaping and priority queuin g to guarantee high quality video traffic. These mechanisms protect vi deo and data traffic from contending for the same network resources to guarantee l ow latency and the highest call quality possible for voice and video traffic.
Configuring the 4300T 3 - 11 Configuration Guide For Enterprise Video Applications A typical 4300T installation for enterprise video applications is d e p i c t e d i n t h e diagram below. In this scenario, the 4300Ts are use d to connect all of the video endpoints to the Gatekeeper.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 12 call quality possible for voice and video traffic. At the same time t hey ensure the best utilization of WAN ba ndwidth by enabling data traffic to burst up to full line rate in the ab sence of video calls.
Configuring the 4300T 3 - 13 System Configuration This section explains how to configur e the 4300T to function in your IP network. You will configure the T1/E 1 WAN interface, Ethernet interfaces , network addresses, DNS settings, defaul t gateway , SNMP settings and change the administrative password.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 14 3. Press Submit. Configuring VLANs in the 4300T As depicted in the diagram below, VLAN s are used to connect the 4300T to an Ethernet switch that has been configured to use VLANs. Typically, all VoIP devices are pl aced in the same VLAN while data devices are placed in a different VLAN.
Configuring the 4300T 3 - 15 • 802.1p is not currently supported 1. Select the Network link. 2. Select Enable VLAN support. 3. Press Submit. 4. Select System. 5. Select VLAN Configuration. 6. Adjust LAN Port Membership drop-down boxes to specify 802.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 16 — 802.1 mod e: Assi gn the po rt to any ONE VL AN. — 802.1q mode: Assign the port to any number of VLANs Perform steps 1 through 6 above for each VLAN you wish to create. Modify an Existing VLAN Configuration 1.
Configuring the 4300T 3 - 17 Assign the 4300T’ s ALG to your Priority VLAN Once you have completed your VLAN configuratio n you must assign the 4300T ALG to the VLAN containing your VoIP phones. 1. Select the VoIP ALG from the main configuration menu.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 18 6. Enter the Default Gateway. This is usually the upstream router’s IP address. Packets destined for IP networks not known to the 4300T are forwarded to the default gateway for handling. 7. Enter the Primary DNS Server.
Configuring the 4300T 3 - 19 Protocol Display and set the T1 Layer 2 pr otocol. Supported protocols are: • HDLC • Cisco HDLC • PPP • ANSI (Frame Rela y) • CCITT (Frame Relay) 1.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 20 Timing Display and set the clock ti ming source fo r the T1/E1 interface. The timing can be either derived from the network (External) or provided to the T1 interface by the V 2 IU (Internal).
Configuring the 4300T 3 - 21 In addition the 4300T will provide its LAN IP address in DHCP user options 150 and 151 for use by IP phones. Some IP phones use these values for configuration of their TFTP server and MGCP control server addresses. You can also enable or disable the 4 300T DHCP server on a per VLAN basis.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 22 The Windows Internal Naming Service (WINS) is a service that keeps a database of computer name-to-IP address mappings so that computer names used in Windows environments can be mapped to IP addresses.
Configuring the 4300T 3 - 23 3. Press Submit. Configure Hostname, SNMP and Remote Logging The 4300T can be managed remotely by an SNMP network management system such as HP Openview. The 4300T supports SNMPv1 or S NMPv3 and MIB-II (RFC1213). All MIB-II variables are read only.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 24 1. Select the Enable SNMP v1 or v3 ch eckbox. If using SNMPv1 enter the Read-Only Community. If using SNMPv3 enter the User Name, Passphrase and Security method. 2. Enter the System Location. This is a comment string that can be us ed to indicate t he physical locatio n of the 4300T.
Configuring the 4300T 3 - 25 4. Uncheck the Enable Remote System L ogging checkbox. 5. Press Submit. Configure a local Hostname A locally configured hostname is useful for remote management. This name can appear as the identifier string for the 4300T on a system management console.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 26 Change the Administration Password We strongly recommend that you chan ge the default password for the root administrative account using the following steps: 1. Enter the password you chose in step C again in the Confirm Password to ensure that there were no mistakes in the initial entry.
Configuring the 4300T 3 - 27 • Enable mobility in the enterprise LAN for voice devices. This is useful, f or example, when using WiFi or moving office locations.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 28 6. Enter the TFTP Server Address. This address is used to identify the TFTP server that contains the images used by IP phones at boot up.
Configuring the 4300T 3 - 29 The bandwidth is specified in kbps and if it is set to 0, bandwidth management is not enforced. Only ca lls with media traversing the 4300T is counted towards the bandwidth maximum. 11. The Current payload bandwidth calcul ates the current video traffic, without IP overhead, traversing th e Appliance.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 30 Enter a V oIP Subnet Route 1. Select System. 2. Select System Overview. 3. Select VoIP Subnet Routing. 4. Enter the IP Network (e.g. 10.10.12.0). This is the IP address of the remote subnet containing the voice devices.
Configuring the 4300T 3 - 31 2. Select System Overview. 3. Select VoIP Subnet Routing. 4. Enter the IP Network (e.g. 10.10.12.0) . This is the IP address of the remote subnet containing the voice devices. 5. Enter the Netmask (e.g. 255.255.255.0). This is the mask of the IP address of the subnet containing the voice devices.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 32 Data Networking Configuration The 4300T provides static IP routin g and two types of Network Address Translation (NAT) functions fo r data traffic. This section describes the use and configuration of these features.
Configuring the 4300T 3 - 33 Configure Dynamic NA T Use Dynamic NAT when you have multip le PCs installed on the LAN side of the 4300T that require Internet or W AN access. Once Dynamic NAT is enabled the 4300T will automatically perform an address translation for all packets to/from the LAN side PCs.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 34 Delete a Static NA T entr y 1. Select NAT. 2. To delete an IP address or a range of IP addresses h ighlight the entry in the Static NAT Client Entries list and press the Delete key on your keyboard.
Configuring the 4300T 3 - 35 4. Select the Apply Ro ute checkbox. 5. Enter the IP Network address. This address is the remote data network you would like the 4300T to forward to the gateway. The hosts portion of the IP address should be s et to “0”.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 36 The 4300T uses a Stateful Packet Insp ection (SPI) firewall to protect data devices installed behind the LAN interface. Voice devices are protected by the 4300T Application Layer Gateway (ALG) as described in VoIP Configuration .
Configuring the 4300T 3 - 37 Action Description Input format Allow TCP Port Allows traffic with the specified TCP port to terminate on the 4300T . *V alid values range from 1 through 65535. *Multiple entries are separated by a space *Range value specified by : character .
User Guide V 2 IU 4300T Converged Network Appliance 3 - 38 If a given packet does not match any of the configured rules, it is dropped. 1. Select Firewall.
Configuring the 4300T 3 - 39 • Controls the data transfer rate of far-end WAN TCP devices to l imit WAN link congestion. • Supports network-based QoS applications by setting the TOS bits for all VoIP packets sent to the WAN and the LAN. TOS bits are used so that VoIP packets can be prioritized in the network by DiffServ enabled routers.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 40 3. Specify the upstream an d downstream bandwidth of your WAN link 4. Enter the WAN Downstream Ba ndwidth in Kbps.
Configuring the 4300T 3 - 41 Determining the maximum number of concurrent calls The maximum number of concurrent call s that can be supported by the WAN access link is calculated using the following formul a: Max calls = (M aximum WAN upstrea m bandwidth * .
User Guide V 2 IU 4300T Converged Network Appliance 3 - 42 are applied to traf fic in both the up st ream (LAN to WAN) and downstream (WAN to LAN) direction.
Configuring the 4300T 3 - 43 clocked out at the WAN link’s f ull rate LES S the bandwidth currently bein g used for high-priority (ie voice) data. High-priority data is clocked out at the WAN’s full link rate. An y long-lasting burst condit ion in low-priority data will cause these packets to be dela yed and, if necessary, dropped.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 44 Although RTP makes use of UD P the 4300T appliance is able to provide its own congestion avoidance mechanism for voice traffic using Call Admission Control (CAC).
Configuring the 4300T 3 - 45 • Call processing server c onnectivity status indicators • Support for multiple call processing servers usin g DNS • Reporting of the currently active call processin.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 46 prioritized list of available network ba sed call processing servers. The V 2 IU appliance using period ic messages m onitors each server and the highest priority server that is currently reachable will be used for call processing.
Configuring the 4300T 3 - 47 Step 1 – Enable V oIP Sur vivability 1. Log into the V 2 IU appliance using a Netscape or Internet Explorer web browser. 2. Select System. 3. Select Survivability. 4. Select the Enabled radi o button under the Surv ivability Confi guration section of the web page.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 48 1. Log into the V 2 IU appliance using a Netscape or Internet Explorer web browser. 2. Select System.
Configuring the 4300T 3 - 49 2. Select System. 3. Select Survivability. 4. Enter the number of digits for local di aling in the Local Dial P lan section of the web page.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 50 Step 5 - Configure call processing ser ver r edundancy If you will be us ing multiple network based call processing s ervers then you will need to enable server redundan cy and specify the time between DNS lookups in the V 2 IU appliance.
Configuring the 4300T 3 - 51 6. Select Trigger on resends in the Soft switch Redundancy Settings section of the web page. 7. Enter the Number of resends to declare alarm.
User Guide V 2 IU 4300T Converged Network Appliance 3 - 52.
4 - 1 4 System Diagnostics The 4300T provides a powerful set of diagnostic informati on, troubleshooting tools and utiliti es for system mai n tenance to networ k operat ors.
User Guide V 2 IU 4300T Converged Network Appliance 4 - 2 Viewing the ALG registration code Y o u w i l l a l s o f i n d a l i n k t o t h e A L G r e g i s t r a t i o n c o d e o n t h e S y s t e m p a g e . T h e registration code enables the ALG and is pre-installed at the factory.
System Diagnostics 4 - 3 To view the networking configuration an d status of the 4300T proceed to the Network Information page as follows: 1. Select System.
User Guide V 2 IU 4300T Converged Network Appliance 4 - 4 The interface statistics can point to area s of congestion in the network. If the errors statistic is a few percent or more of the total packets sent it may be an indication of excessive congestion on the ne twork interface.
System Diagnostics 4 - 5 System Logging Mes sages Displays informat ion logged duri ng sy stem boot and normal operation. Logging messages may indicate unauthor ized attempts to access the 4300T, process restart messages, and excessive resource uti lization messages.
User Guide V 2 IU 4300T Converged Network Appliance 4 - 6 V erify Registered V oice and Video Devices The 4300T maintains a list of all regist ered voice and video devices called a clients list s o that it can properly route voice and video calls. At startup, voice and video devices register their IP addr esses with the 4300T.
System Diagnostics 4 - 7 Performing a Ping T est A ping test is the most common test us ed to verify basic connectivity to a networking device. Successful ping test results indicate that both physical and virtual path connections exist between the 4300T and the test IP address.
User Guide V 2 IU 4300T Converged Network Appliance 4 - 8 The Network Test Tools page will be refr eshed and the results of the traceroute test are displayed (this may take several seconds ). The Reset button is used to clear the IP address entry used in step D above.
5 - 1 5 Saving and Restoring the 4300T Configuration The 4300T stores all configuration inform ation for the system in a serie s of individual files that reside in local flas h memory. These files are read at boot time to determine the configuration iden tity of the 4300T and then stored in RAM as “running” state.
User Guide V 2 IU 4300T Converged Network Appliance 5 - 2 The ewn command can be used with a loca l terminal connection or remotely using SSH. 1. Use a NULL modem cable to connect to serial port 1 of the 4300T 2.
Saving and Restoring the 4300T Configuration 5 - 3 List all backup files stored in FLASH. If no file has been saved, the command will only return the # prompt. Delete a Backup File # ewn delete <filename> Delete the backup file specified in the filena me.
User Guide V 2 IU 4300T Converged Network Appliance 5 - 4.
6 - 1 6 Upgrading the 4300T This chapter describes how to upgrad e your 4300T to the latest software release available from Polycom. It is recommended that you reboot the 4300T prior to performing the upgrade. Th i s i s t o m a k e s u r e t he r e i s en o u g h dy n a m i c m e m o ry a v a i la b l e t o h a n d le t h e upgrade process.
User Guide V 2 IU 4300T Converged Network Appliance 6 - 2 4. Enter the Download Server address of ftp.support. polycom.com. 5. Enter the Filename: flash.bin 6. Press Submit. You can follow the progress of the upgrade by selecting the refresh the upgrade status link.
Appendix - 1 Appendix T roubleshooting Tips This section contains possible solutions to problems regarding the installation of the 4300T. I am having trouble reaching the Internet through the 4300T . We recommend connecting a PC dire ctly (or via a switch) to the LAN port of the 4300T.
User Guide V 2 IU 4300T Converged Network Appliance Appendix - 2 5. Select Network Test Tools. 6. Enter the softswitch address in the IP Address to Ping field. 7. Press Ping. Specifications W AN Ports 1xT1 CSU/DSU or 10/100 Ethernet LAN Ports 4x10/100 Ethernet (switch ed) Serial Ports 1xRS-232 Dimensions Height (1.
Appendix - 3 Appendix Neighboring Path Navigator Gatekeeper suppor t Example 1 In this example, there are tw o neighb ored Path Navigator gatekeepers, one behind an EdgeMarc, on a private network, and the other on the public network.
User Guide V 2 IU 4300T Converged Network Appliance Appendix - 4 All V2IU’s running VOS Version 5.8.0 PathNavigator running version 7.00.01 (7.00.01.0 185) EMV2006 V500 IP = 67.100.100.240 e164 = 2040 Alias = V500 GK = 67.100.100.100 IP = 90.186.171.
Appendix Appendix - 5 V2IU A 1. Setup the Network settings. a LAN interface IP address = 192.168 .2.1 b LAN interface subnet = 255.255.255.0 c WAN interface IP address = 69.52.177.69 d WAN interface subnet = 255.255.25 5.0 e Default Gateway = 69.52.1 77.
User Guide V 2 IU 4300T Converged Network Appliance Appendix - 6 Endpoints 1. Configure the video endpoints as shown in the diagram above. The PVX 104, 105 endpoint’s ga tekeeper is GK A, 192.168.2.80 The V500 is a regist ered to GK X, 67.100.10 0.100.
Appendix Appendix - 7 Example 2 In this example, there are tw o neighb ored Path Navigator gatekeepers, one behind one V2IU, on a private network, and the other behind another V2IU, on a separate private network. There is also a codec be hind a third V2IU, just as an example.
User Guide V 2 IU 4300T Converged Network Appliance Appendix - 8 V2IU A 1. Setup the Network settings. a LAN interface IP address = 192.168 .2.1 b LAN interface subnet = 255.255.255.0 c WAN interface IP address = 69.52.177.69 d WAN interface subnet = 255.
Appendix Appendix - 9 Network Settings.
User Guide V 2 IU 4300T Converged Network Appliance Appendix - 10 V oIP ALG – H323 Settings.
Appendix Appendix - 11.
User Guide V 2 IU 4300T Converged Network Appliance Appendix - 12 V2IU B 1. Setup the Network settings. ( Configuration -- Neighboring Ga tekeeper -- Neighbors -- Add ) a LAN interface IP address = 192.168 .1.1 b LAN interface subnet = 255.255.255.0 c WAN interface IP address = 64.
Appendix Appendix - 13 Network Settings.
User Guide V 2 IU 4300T Converged Network Appliance Appendix - 14 V oIP ALG – H323 settings.
Appendix Appendix - 15.
User Guide V 2 IU 4300T Converged Network Appliance Appendix - 16 V2IU C 1. Setup the Network settings. a LAN interface IP address = 10.1 0.10.1 b LAN interface subnet = 255.255.255.0 c WAN interface IP address = 64.186.171.51 d WAN interface subnet = 255.
Appendix Appendix - 17 V oIP ALG – H323 Settings.
User Guide V 2 IU 4300T Converged Network Appliance Appendix - 18.
Appendix Appendix - 19 Endpoints 1. Configure the video endpoints as shown in the diagram above. The PVX 101 , 102 endpoint’s gatekeeper = 192.168.1.45 The PVX 104 , 105 endpoint’s gatekeeper = 192.168.2.80 The Viewstation’s gatekeeper = 10.10.10.
User Guide V 2 IU 4300T Converged Network Appliance Appendix - 20 Path Navigator Defining a Neighboring Gatekeeper in the Path Navigator. Source Destination Dial string PVX 101 / PVX 102 / PVX 103 / PVX 105 / View stat ion (string) 444@64.186.171.51 VSX 7000 PVX 101 PVX 102 PVX 104 PVX 105 View stat ion (IP + Ext) 64.
Regulator y Notices - 1 Regulator y Notices END-USER LICENSE AGREEMENT FOR POL YCOM® SOF TW ARE IMPORTANT-READ CAREFULLY BE FORE USING THE SOFTWARE PRODUCT: This End-User License Agreement ("Agr eement") is a legal agreement betwee n you (and/or any company y ou represent) and either Polycom (Netherlands) B.
User Guide V 2 IU 4300T Converged Network Appliance Regulator y Notices - 2 agree to be and will be bound by the te rms of this Agreement. If you do not agree to the terms of this Agreement, your use is prohibited and you may not install or use the SOFTWARE PR ODUCT.
Regulator y Notices Regulator y Notices - 3 2.5 Software Transfer. You may pe rmanently transfer all of your rights under this Agreement in connect ion with transfer of the PRODUCT, provided you retai.
User Guide V 2 IU 4300T Converged Network Appliance Regulator y Notices - 4 4. TERMINATION. Without prejudice to any other rights, POLYCOM may terminate this Agreement if you fail to comply with any of the terms and conditions of this Agreement. In such event, you must destroy all copies of the SOFTWARE PRODUCT and all of its component parts.
Regulator y Notices Regulator y Notices - 5 IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE, INCLUDING WARRANTIES , TERMS, OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, SATISFACTORY QUALITY, CORRESP ONDENCE WITH DESCRIPTION, AND NON-INFRINGEMENT, ALL OF WHICH ARE EXPRESSLY DISCLAIMED .
User Guide V 2 IU 4300T Converged Network Appliance Regulator y Notices - 6 9. DISCLA IMER. Some cou ntries, stat es, or provinces do not allow the exclusion or limitation of im plied warranties or th.
Regulator y Notices Regulator y Notices - 7 Any use, modification, reproduction, release, performance, display or disclosure of such technical data shal l be governed by the terms of DFAR Section 227.
User Guide V 2 IU 4300T Converged Network Appliance Regulator y Notices - 8 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Prog ram, and co.
Regulator y Notices Regulator y Notices - 9 the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily u sed for software interchange; or, c) Accompany it with the informati on you received as to the offer to distribute corresponding source code .
User Guide V 2 IU 4300T Converged Network Appliance Regulator y Notices - 10 conditions of this License, they do not excuse you fr om the conditions of this License.
Regulator y Notices Regulator y Notices - 11 exceptions for this. Our de cision wi ll be guided by th e two goals of preserving the free status of all derivatives of our free software and of promoting the sharing an d reuse of softwar e generally. NO WARRANTY 11.
User Guide V 2 IU 4300T Converged Network Appliance Regulator y Notices - 12 (1) This device must only be connected to the T1 WAN network. (2) Before con necting your unit, you must inform the telephone company of the following information: Port ID REN/SOC FIC USOC T1 WAN 04DU9-DN, 04DU9-B N 6.
Regulator y Notices Regulator y Notices - 13 Users should ensure for their own prot ection, that the electrical ground connections of the power utility, telep hone lines and internal metallic water pipe system, if present, are connected together. This pr ecaution may be particularly important in ru ral areas”.
User Guide V 2 IU 4300T Converged Network Appliance Regulator y Notices - 14.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Polycom 4300T è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Polycom 4300T - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Polycom 4300T imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Polycom 4300T ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Polycom 4300T, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Polycom 4300T.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Polycom 4300T. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Polycom 4300T insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
