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Problem with IP Phone 7921G

Hello! I have IP Telephony system on CUCM 7.1.5 and some IP Phones Cisco 7921G:

System Load ID CP7921G-1.3.3.LOADS
Version V04
User Locale Version 7.1.0.1(3)
Model Number CP-7921G

My Wi-Fi network segment is organized on Cisco Wireless Controller 2125 and Lightweight AP`s 1142

In the last time I have a permanent problem with this phones: during conversation in a tube there is a silence on some seconds and at this time interlocutors do not hear each other. After these several seconds communication is restored also interlocutors continue conversation. Please tell me how can I resolve this problem?

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Hall of Fame Master

Problem with IP Phone 7921G

Update phone and AP software to begin with.

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Beginner

Problem with IP Phone 7921G

Please do a wireshark trace and attach it.

That symptom appears to be a timestamp reset in RTP stream.

bye for now,

Dino Rubio

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