255
Advanced Troubleshooting and Repair
Broken Audio,
intermittent (IP trunks
only)
Handsfree on the far
end.
Ensure that neither device is using
Handsfree. Some handsfree phones
only operate at half duplex.
Packet loss, jitter via
network.
1. Identify the speech path between
the two end points, including
router, switch WAN in the audio
stream.
2. The network administrator needs
to apply QOS/TOS to minimize
jitter over slow speed interface
(T1, Frame Relay, etc.), and give
voice traffic priority over data.
Limited bandwidth and
too many calls across
router, or combination
data and voice.
1. Limit the number of calls to remote
subnets.
2. The network administrator needs
to apply QOS/TOS to give voice
traffic priority over data.
Physical port error
(CRC, faulty cable,
duplex mismatch, HUB).
1. Identify the speech path between
the two end points, including
router, switch WAN in the audio
stream.
2. Verify that there is no duplex
mismatch in each port settings
and/or faulty cable, or faulty port.
3. Make sure that the IP Phone is not
plugged into a HUB.
Compression enabled
Compression will save bandwidth,
but may cause noticeable clipping. If
not sure, disable compression to see
if it makes a difference.
Router’s CPU is
exhausted or congested.
Router may be running excessive
filtering. The network administrator
may need to monitor the
performance of the router.
Echo between IP
Phones
Layer 2 switch setting
problem.
1. Check the L2 switch for duplex
mismatch and spanning tree.
2. Turn off if possible.
Table 47: Audio Quality Problems Troubleshooting (continued)
Symptoms
Probable Cause
Corrective Action
(Page 2 of 2)
Содержание SX-200 ICP - 1.0 5020
Страница 1: ...Release 4 0 CX CXi Controller TECHNICIAN S HANDBOOK ...
Страница 9: ...Chapter 1 Introduction ...
Страница 10: ...2 SX 200 ICP CX CXi Technician s Handbook ...
Страница 18: ...10 SX 200 ICP CX CXi Technician s Handbook Figure 1 Basic SX 200 ICP System CXi controller shown ...
Страница 24: ...16 SX 200 ICP CX CXi Technician s Handbook ...
Страница 25: ...Chapter 2 Basic Installation ...
Страница 26: ...18 SX 200 ICP CX CXi Technician s Handbook ...
Страница 75: ...Chapter 3 Basic Programming ...
Страница 76: ...68 SX 200 ICP CX CXi Technician s Handbook ...
Страница 87: ...79 Basic Programming The programmable keys on 5212 and 5330 not shown IP Phones are numbered as follows ...
Страница 89: ...81 Basic Programming The keys on the 5412 PKM are numbered as follows ...
Страница 98: ...90 SX 200 ICP CX CXi Technician s Handbook Figure 10 Administrator Mailbox Menu ...
Страница 142: ...134 SX 200 ICP CX CXi Technician s Handbook ...
Страница 143: ...Chapter 4 Advanced Installation and Programming ...
Страница 144: ...136 SX 200 ICP CX CXi Technician s Handbook ...
Страница 183: ...Chapter 5 Routine Maintenance ...
Страница 184: ...176 SX 200 ICP CX CXi Technician s Handbook ...
Страница 219: ...Chapter 6 Basic Troubleshooting and Repair ...
Страница 220: ...212 SX 200 ICP CX CXi Technician s Handbook ...
Страница 245: ...Chapter 7 Advanced Troubleshooting and Repair ...
Страница 246: ...238 SX 200 ICP CX CXi Technician s Handbook ...
Страница 269: ...Appendix A Default Database Values ...
Страница 270: ...262 SX 200 ICP CX CXi Technician s Handbook ...
Страница 325: ...317 Default Database Values Form 55 Incoming Digits INCOMING DIGITS DID PREFIX DAY N1 N2 TENANT ...
Страница 326: ...318 SX 200 ICP CX CXi Technician s Handbook ...
Страница 327: ...Appendix B Part Numbers ...
Страница 328: ...320 SX 200 ICP CX CXi Technician s Handbook ...
Страница 336: ...328 SX 200 ICP CX CXi Technician s Handbook ...
Страница 337: ...Appendix C System Cabling ...
Страница 338: ...330 SX 200 ICP CX CXi Technician s Handbook ...
Страница 343: ...Appendix D Folio Views E Docs Tips ...
Страница 344: ...336 SX 200 ICP CX Technician s Handbook ...
Страница 348: ...340 SX 200 ICP CX Technician s Handbook ...
Страница 360: ... Trademark of Mitel Networks Corporation Copyright 2006 Corporation All rights reserved Mitel Networks ...