Johan, Progress Description of "inband info available" could mean other things based on the situation. Ex. A caller tune is being played ahead of the call being answered.
SIP-I (SIP with ISUP encapsulation - ANSI T1.679 or ITU-T Q 1912.5) provides a solution framework for this, largely because of its ISUP service transparency.183 Session Progress carrying an ISUP PROGRESS message body can be used to detect your kind of scenario. For all it matters, SIP-I will transparently carry the ISUP CPG to a switch hosting the ISUP stack; it's up to the regular ISUP stack to handle it. Regards Harsha -----Original Message----- From: sip-implementors-boun...@lists.cs.columbia.edu [mailto:sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of DE CLERCQ Johan -0001000 Progress Description // inband info is available That's how voicemailboxes are detected in isdn. I do not think that this is early media. **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. Infosys has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. Infosys reserves the right to monitor and review the content of all messages sent to or from this e-mail address. Messages sent to or from this e-mail address may be stored on the Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS*** _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
