About Tao Ren

Tao Ren · 03-25-2015

I need to find out the end point point information from the SIP trunk. When a call from CUCM to SIP trunk, can I tell the end point information from the SIP message, e.g. SCCP phone or SIP phone? For instance, Cisco 8945 phone can have both SIP and S...

Tao Ren · 03-23-2015

For some reason, I need to find out the end point point information from the SIP trunk. When a call from CUCM to SIP trunk, can I tell the end point information from the SIP message, e.g. SCCP phone or SIP phone? For instance, Cisco 8945 phone can ha...

Tao Ren · 05-22-2014

Hi folks,In CUCM9.1, for a route list, I configure multiple route groups, and multiple trunks within one route groups. My question is, in what condition CUCM will re-route the call to the next trunk or next route group, in another words, CUCM will re...

Tao Ren · 08-22-2016

Thanks Jonathan, That is exactly the root cause.

Tao Ren · 07-07-2016

I can not even ssh with admin login, can only ssh with root which seems not be able to use CLI command.

Tao Ren · 07-05-2016

I have the same issue, the primary vcsc prompts this error when I try to log in, the secondary vcsc does not have this problem. However I need to login the primary vcsc to make a configuration change. Any help?

Tao Ren · 07-13-2014

Change "SIP Min-SE Value" from 1800 to 500 on CUCM servers.

Tao Ren · 05-23-2014

Thanks Suresh,Sorry for my mistake. CUCM actually get 480 Temporarily unvailable.

Member Since	‎08-01-2013 04:36 PM
Date Last Visited	‎08-18-2017 04:27 AM
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A call from CUCM to SIP trunk, from the SIP trunk, can I tell the call is from a SCCP or SIP phone by reading SIP message?

A call from CUCM to SIP trunk, from SIP message captured on the SIP trunk, can I tell the call is from a SCCP phone or a SIP phone?

CUCM SIP: In what condition the call is re-route to the second RG or trunk?

Thanks Jonathan,

I can not even ssh with admin

I have the same issue, the

Change "SIP Min-SE Value"

Thanks Suresh,Sorry for my