Probably, there is no such possibilty for your version...
Accordinf to this: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/8_6_1/ccmsys/accm-861-cm/a08sip.html#pgfId-1319946
Cisco Unified Communications Manager also enhances interoperability with third-party devices during mid-call operations, such as basic hold/resume operations, and during supplementary services, such as transfer and conference. In previous releases, Cisco Unified Communications Manager sent an INVITE with an inactive SDP (a=inactive attribute) to indicate a break in media path, sent a delayed offer INVITE to insert music on hold or to resume the media stream, and expected a send-recv offer SDP in the 200 OK. Because third-party devices often provide an inactive offer SDP in the 200 OK instead of providing a send-recv offer SDP, the media path remains in an inactive state and causes calls to drop.
Cisco Unified Communications Manager allows you to configure a parameter for an early offer SIP trunk so that Cisco Unified Communications Manager suppresses the sending of inactive or sendonly SDP in mid-call INVITEs. When this parameter gets enabled, Cisco Unified Communications Manager connects the SIP trunk device directly to the MOH or annunciator device without breaking the existing media stream during call hold or during other feature invocation. Similarly, Cisco Unified Communications Manager connects the SIP trunk device to a line-side device directly during call resume without breaking the MOH or annunciator stream. By preventing the far-end media stream from getting set to inactive, Cisco Unified Communications Manager should always be able to resume the media path.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
[toc:faq]CUCM Database Replication is an area in which Cisco customers
and partners have asked for more in-depth training in being able to
properly assess a replication problem and potentially resolve an issue
without involving TAC. This document discusse...