It appears that you want to decide whether to charge/ not charge early media - a ring back tone or announcement selectively whatever may be the case so you are looking for a mapping between ACM & 183.
You may refer to RFC 3204 and use the SIP INFO method to insert ISUP messages during a call to send out the charging information. Also refer to Section 3.3 & 5.4 in RFC 3372 for details on how this can be achieved using SIP-T. I am not sure you can map any of the backward indicator/ charge indicator to a 183 message directly; at least there is no mention of the same in RFC 3960. I hope this helps. Regards, Gaurav -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ganesh Pitchiah S Sent: Thursday, October 19, 2006 2:02 AM To: [email protected] Subject: [Sip-implementors] No charge indication in 183 session progress Hi All, I am facing a situation here some calls should not be charged. This will be indicated in ISUP ACM message I need to convert this to 183 Session Progress. Can you please suggest me in which header we can include the no charge indication? I have referred RFC3398 (7.2.6 ACM received) it is not helping me. Thanks and Regards, Ganesh. _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
