PRIME Infrastructure showing VOIP Call Failed (Error code 14 or 15)

[francokenneth]

Hi.

Has anyone of you encountred the message:

VOIP Call Failed for "(Error Code 15) occurred on client "xx:xx:xx:xx:xx:xx' which was associated to AP <APName> on interface 802.11b/g?

The client is using a 7921 wireless handset and she's complaining that sometimes when she makes a call, the phone displays "leaving service area". This does not happen all the time, it happens intermittently on the user.

Your comments related to this issue is appreciated. Thanks.

Regards,

Ken

[George Stefanick]

What type of access points ?

what code is the phones on ? 

How often does this happen ? 

[ali aqrabawi]

make sure the data rates configured like below :

1)for 802.11a :

12.0 should mandatroy , higher data rates supported and the lower should be disabled .

2)for 802.11bg:

11.0 should be mandatory , higher data rates supported and the lower should be disabled 

Beers

Ali

[CSCO11978145]

I'm also having this issue for one of our clients.

Well not in Prime but the 7921G phone intermittently showing leaving service area

Client has a 2504 controller with 1832 access points

I have tried 8.1.131 and 8.2.100 code but not making any difference

[mohanak]

The status message, "Leaving Service Area" indicates that the phone is not receiving a strong signal.

http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7921g/6_0/english/administration/guide/7921ins.html#wp1117646

https://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7921g/6_0/english/administration/guide/7921trb.pdf

[CSCO11978145]

Thanks mohanak I have looked at these already.  But this is happening while standing under an AP. Without roaming with very good RSSI and SNR or moving between AP's

I read somewhere that continuous scan should be set on the CUCM, is that a default?