Hello, I'm trying to append trunk group information to my Contact header so I'm, using append_hf as follows
append_hf("tgrp=30001 \r\n", "Contact");
but it seems to go on the second line. How do I remove the line feed?
Max-Forwards: 69. Contact: sip:1001@192.168.1.2:44114. tgrp=DMS19 .
--Matteo