7925 Phones voice quality issues with wlc 5508 version 7.6
I have a mix environment with 1 WLC 5508 and more or less 6 sites with several Access Points ( all AIR-LAP1242AG and all in FlexConnect mode Hreap ) and several wireless phones (all CP7925G) . My Ap's have antennas 2.4GHz in all sites except 1 site ( the one i'm talking for now) with 2.4GHz and 5GHz , because of the problems we suggest to have all phone in A BAND (5Ghz) . In this site we force the phones just to A (802.11a only) , power safe NONE , Continuous scan mode , i fallow all in http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7925g/7_0/english/deployment/guide/7925dply.pdf , one thing i didn’t do it was apply QoS because I can’t apply several ios commands in that 2960 with lan lite ios.
So I have 3 SSID for data and 2 for VOICE ( one is common to all environment and supports 2.4 and 5Ghz , and other just to test one site , with only 5Ghz with “[WPA2][Auth(802.1X + CCKM)][Auth(FT 802.1X)]”, because I read that problem can be phone rooming , and in FlexConnect only have fast-roaming in a CCKM or a PKM key-management solution , but even like this the problem still exist) .
I have another sites with phones in 2.4GHz running well and others with problems.
i read here in forums lots and lots of people with similar problems , i tried several solutions ( WLC upgrades versions and phones firmware's , …. ) tried all my best of solving the problems mas now I’m running without any ideas , i did also some site surveys and detect some interferers that why I change phones to 5Ghz , and I run also WLC Config analyser to help me , but all without good success. Some changes solve temporarily problems , but after some time , people reclaim about problems.
I can open a TAC case but first I want be sure if did all already.
Can someone try to help me?
ip phone 7925G firmware : CP7925G-1.4.5SR1.3 CUCM 8.6.2 WLC 5508 : 18.104.22.168 AP : AIR-LAP1242AG-E-K9 22.214.171.124 (flexconnect)
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
implemented in DST. Daylight Saving Time (DST) is the practice of
setting the clocks forward 1 hour from standard time during the summer
months, and back again in the fall, in order to make b...