I am currently working on asterisk-11.5.1 version and need to have either the “Supported: 100rel” or the “Require: 100rel” in my initial SIP INVITE. For this, i had also included the line “prack=yes” in the [general] section of the sip.conf file and performed a “sip reload” on the asterisk CLI. But still the headers (with 100rel as the value) are not present.
Additionally, find that the “Supported: replaces, timer” is present.
Please help me in getting the 100rel also in the initial SIP INVITE. Additional references to the above topic is also highly appreciated.
Thanks in advance
B. Poonam Chand Jain