Hi Kutay, I understand that the Calling Party Number _parameter_ is 'present' in IAM. I assume that the calling number in IAM was received as follows (Reference: ITU-T Q.763 (12/1999) - Note 1 in Section 3.10): Odd/Even Indicator = 0 (even) NOA = 0 (spare) Number incomplete indicator = 0 (complete) Numbering plan = 0 (spare) APRI = 10 (address not available) Screening indicator = 11 (network provided)
According to 3GPP TS 29.163 (v8.20.0), for such a case, typically the P-Asserted-Id header is not included at all (Reference: 3GPP TS 29.163, Section 7.2.3.2.2.3, Table 12 & Note 2 below Table 12). The From header will have contents as "sip:[email protected]" (refer also 3GPP TS 23.003). Of course, one may extend the above mapping rule for PAI also, anyhow in such a case I'd expect that the PAI also be "sip:[email protected]". Note: The "anonymous" case arises when the ISUP Calling Party Number's APRI indicates "presentation restricted". Regards, Swami. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ozdogru, Kutay Sent: Thursday, May 22, 2014 8:27 PM To: [email protected] Cc: Caglar ER ([email protected]); [email protected] Subject: [Sip-implementors] Empty P-Asserted-Identity Header Hi all, Our switch is receiving IAM message and mapping it to SIP as below. IAM: Calling Number: (empty) SIP: P-Asserted-Identity: <sip:xxx.xxx.xxx.xxx> Privacy: none After that remote party replies with 603 Decline with the values below: Reason: Q.850 ;cause=16 ;text="local" I am wondering, is it possible to send PAI header empty like this? Or it has to be at least anonymous ? Regards, K _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
