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Migration to WLC Problems whit Phone 792X

ricardorojas123
Level 1
Level 1

‎06-30-2010 08:34 PM - edited ‎07-03-2021 06:56 PM

Hi,

We have migrated from a Autonomous Wireless Solution (1200 AP) to Centralized Wireless LAN Controller (WLC 5500). The WLANs work fine, but the call on the Wireless Phone 7921, are experiencing problems, sound in one way, drop of calls, problems no present  previously with the autonoums solution. The QoS of the Voice WLAN is set to Voice, but the problems  persist. Any Suggestion ??

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5 Replies 5

Leo Laohoo
Hall of Fame
Hall of Fame

‎06-30-2010 08:46 PM

What is the firmware of your phone?

ricardorojas123
Level 1
Level 1
In response to Leo Laohoo

‎07-01-2010 07:22 AM

The firmware used by the phones are: CP7921G-MFG-C.2.LOADS

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Leo Laohoo
Hall of Fame
Hall of Fame
In response to ricardorojas123

‎07-01-2010 03:15 PM

Settings > Model Information > and under App Load ID what does this say?

shh5455
Level 3
Level 3

‎07-01-2010 08:56 PM

It sounds RRM on the WLC may have changed your power levels on the APs.  One way audio is almost always caused by the power of the AP being set higher than the power on the phone.  Have a look at this deployment guide.

http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7921g/6_0/english/deployment/guide/7921dply.pdf

ricardorojas123
Level 1
Level 1
In response to shh5455

‎07-02-2010 07:14 AM

The firmware is: cp7921gmfga.7.loads

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