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Beginner

7925 Audio delay when answering calls

We’re having a Cisco Wireless 7925 Audio delay issue. When calls are answered the first 5 to 16 seconds there is not audio available. The issue is sporadic and not easily replicated which makes it very difficult to capture traces. It appears that the wireless is not receiving the ACK in a timely manner once end users accept calls. Continuous scanning was applied to some of the handsets, but it does not appear to have changed the behavior. We were hoping that more persistent connection would eliminate the delay.

The issue appears in the following situations:

Wireless to wireless

Wireless to Cisco desk phones

Cisco Desk Phones to Wireless

Wireless to external

External to Wireless

The wireless network is running of 2 Cisco controllers using WPA2-PSK with pre-shared keys. The phones have firmware version CP7925G-1.4.3ES.1 loaded.  We are running UCM version  8.6.2.21900-5

Has anyone seen this or have ideas on what can be done?

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Hall of Fame Master

7925 Audio delay when answering calls

Are you using a Cisco wireless infrastructure ?

Beginner

7925 Audio delay when answering calls

Yes,  we are running a cisco wireless environment.   5500 controllers with LAP1142N

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Beginner

Re: 7925 Audio delay when answering calls

Pre-shared have been known to cause delay. If you have ACS or something, use cckm. We had the same problem.

Sent from Cisco Technical Support iPhone App

Enthusiast

Hi Rudydid you solve your

Hi Rudy

did you solve your problem with delayed answering?

Thanks and best regards

Dominic

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