topic Cisco WLC adding fo parameter in SIP UPDATE in Wireless

Cisco WLC adding fo parameter in SIP UPDATE

amitsalunkhe21 — Sun, 04 Jul 2021 08:01:33 GMT

Hi All.

We have following setup--

User Phone=====>Wifi Device (non sip aware)========> WLC========>SIP Proxy

We found when User A and User B calling each other (both under above setup) call got connected but when User 1 sending SIP sessio refresh message UPDATE we found 3-4 Update message modify by Cisco WLC and adding fo charcater before Update message.

fo<UPDATE sip:211222@user.com

Not sure why WLC adding fo update character is this bug in OS as fo character added in 3-4 session refresh by WLC.

PLease help me if any one come across this porblem/

Amit

Cisco WLC adding fo parameter in SIP UPDATE

blenka — Wed, 09 Oct 2013 01:51:42 GMT

Kindly go through the link for step to step configuration for SIP.

Using the GUI to Configure Voice Parameters

http://www.cisco.com/en/US/docs/wireless/controller/7.0MR1/configuration/guide/cg_controller_setting.html#wp1088037

Cisco WLC adding fo parameter in SIP UPDATE

amitsalunkhe21 — Wed, 09 Oct 2013 15:07:48 GMT

Hi Bsant I dont think it will solve my problem,as WLC adding fo parameter before UPDATe message randomly. in given link no configuration to check ori aviod that "fo" parameter.

PLease sugggest is it bug at OS level.

Amu