Table of Contents
7 Troubleshooting ...................................................................................257
7.1
Troubleshooting ............................................................................................................258
7.1.1
Installation ....................................................................................................................258
7.1.2
Connection ...................................................................................................................261
7.1.3
Operation ......................................................................................................................262
7.1.4
Error Messages ............................................................................................................264
7.1.5
Restarting the PBX .......................................................................................................266
7.1.6
8.1
8.1.1
8.1.2
8.1.3
VLAN (Virtual LAN) ......................................................................................................276
8.1.4
Jitter Buffer ...................................................................................................................277
8.1.5
8.1.6
Network Configuration ..................................................................................................278
8.1.7
Network Devices ..........................................................................................................282
8.1.8
QoS (Quality of Service) ...............................................................................................283
8.1.9
8.2
8.2.1
8.3
H.323 CO Lines ..............................................................................................................287
8.3.1
8.3.2
Gatekeeper ...................................................................................................................288
8.3.3
Bandwidth Assessment ................................................................................................288
8.3.4
8.4
SIP CO Lines ..................................................................................................................292
8.4.1
IP Telephony Service ...................................................................................................292
8.4.2
SIP Requirements ........................................................................................................295
8.4.3
Router Requirements ...................................................................................................295
8.4.4
Bandwidth Requirements .............................................................................................295
8.4.5
8.5
Types of PBX Networks ................................................................................................298
8.5.1
H.323 QSIG Network ....................................................................................................298
8.6
Port Security ..................................................................................................................299
9 Appendix ...............................................................................................303
9.1
System Prompt Languages ..........................................................................................304
9.2
Revision History ............................................................................................................305
9.2.1
9.2.2
9.2.3
9.2.4
14
Installation Manual