I am having problems with 1 way voice or no way voice on the 7920 models only and I can not figure it out. the Phone rings and Answers but nothing either way . I have no packet analyzer available at this time.
The phone registers via QIP DHCP with Option 150 and gets its DN.
single 3.3.3 latest patches
7960- Registers to CCM
7920- Registers to CCM
7960-7960 works fine 7920-7960 works fine
7920-7920 phone rings you can answer call but nothing
7960-7920 phone rings you can answer call but nothing
You can here Tone on Hold no MOH. we are using 1.06 firmware on the 7920 with the ccm & Ip Phones on the same IP Subnet we and we are using 1 access point w/ LEAP no WEP and we authenticate sucesfully.
Pc to PC on the wireless works fine
Pc to 7920 works the way it should with !.!!.
Could it be the Vlans on the AP this is on a production network. We can Ping.
There is a know bug for the problem you are having. The bug is CSCed52752:One-way audio happened at 7920 when it calls 7960 locally.
One-way audio happened at Wireless IP Phone 7920 when it calls CP-7960
Cisco CallManager 3.3(3) SR3
Cisco Wireless IP Phone 7920 Load 1.0(6)
Cisco IP Phone 7960 Load P00305000300
We have extactly the same problem with the load 1.06 on the 7920, and with the loads P00305000300 and P00305000400 on the 7940/60. We also get no way audio between 2 7920's. Our setup is identical to yours with regards voice vlan/subnets.
After some testing, the problem does not occur on these devices if the AP is left open or if the 7920/AP use static WEP Keys. Only seems to happen when we use LEAP, so must be related to LEAP.
We had the same problems when we downgraded the 7920 load to 1.05.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
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