Hi, According RFC 2976, SIP INFO method carrying Account Balance Information ( correct me if i am wrong ) . you can add custom module to PJSIP to support SIP INFO method....( still SIP INFO is missing in the FAQ, but AFAIK, there is some answer from benny in the mailing list about how to add SIP INFO method ) AFAIK , asterisk doesn't send any account balance info since asterisk has no billing its own. May be you need to modify also asterisk chan_sip.c for supporting send accounts balance with SIP INFO:) atik
