[Sip-implementors] Empty P-Asserted-Identity Header

[Ozdogru, Kutay]

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

[swaminathan.seetharaman]

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:unavailable at unknown.invalid" (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:unavailable at unknown.invalid".

Note: The "anonymous" case arises when the ISUP Calling Party Number's APRI indicates "presentation restricted".

Regards,

Swami.

-----Original Message-----
From: sip-implementors-bounces at lists.cs.columbia.edu [mailto:sip-implementors-bounces at lists.cs.columbia.edu] On Behalf Of Ozdogru, Kutay
Sent: Thursday, May 22, 2014 8:27 PM
To: sip-implementors at lists.cs.columbia.edu
Cc: Caglar ER (cer at NETAS.com.tr); nazligul at netas.com.tr
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
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[Mustafa AYDIN]

Hi Kutay,

There is no restriction to send PAI header without the userinfo.

Regards,

Mustafa Ayd?n
NGN Services
Verscom Solutions

-----Original Message-----
From: sip-implementors-bounces at lists.cs.columbia.edu [mailto:sip-implementors-bounces at lists.cs.columbia.edu] On Behalf Of Ozdogru, Kutay
Sent: Thursday, May 22, 2014 5:57 PM
To: sip-implementors at lists.cs.columbia.edu
Cc: Caglar ER (cer at NETAS.com.tr); nazligul at netas.com.tr
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

[Mustafa AYDIN]

RFC 3325:



PAssertedID-value = name-addr / addr-spec



RFC 3261:



name-addr = [ display-name ] LAQUOT addr-spec RAQUOT

addr-spec = SIP-URI / SIPS-URI / absoluteURI

SIP-URI = "sip:" [ userinfo ] hostport

uri-parameters [ headers ]



[ userinfo ] ----> [] means optional



Mustafa Ayd?n

Verscom Solutions





-----Original Message-----
From: sip-implementors-bounces at lists.cs.columbia.edu [mailto:sip-implementors-bounces at lists.cs.columbia.edu] On Behalf Of Mustafa AYDIN
Sent: Friday, May 23, 2014 7:55 AM
To: Ozdogru, Kutay; sip-implementors at lists.cs.columbia.edu
Cc: Caglar ER (cer at NETAS.com.tr); nazligul at netas.com.tr
Subject: Re: [Sip-implementors] Empty P-Asserted-Identity Header



Hi Kutay,



There is no restriction to send PAI header without the userinfo.



Regards,



Mustafa Ayd?n

NGN Services

Verscom Solutions



-----Original Message-----

From: sip-implementors-bounces at lists.cs.columbia.edu<mailto:sip-implementors-bounces at lists.cs.columbia.edu> [mailto:sip-implementors-bounces at lists.cs.columbia.edu] On Behalf Of Ozdogru, Kutay

Sent: Thursday, May 22, 2014 5:57 PM

To: sip-implementors at lists.cs.columbia.edu<mailto:sip-implementors at lists.cs.columbia.edu>

Cc: Caglar ER (cer at NETAS.com.tr<mailto:cer at NETAS.com.tr>); nazligul at netas.com.tr<mailto:nazligul at netas.com.tr>

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

Sip-implementors at lists.cs.columbia.edu<mailto:Sip-implementors at lists.cs.columbia.edu>

https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors

_______________________________________________

Sip-implementors mailing list

Sip-implementors at lists.cs.columbia.edu<mailto:Sip-implementors at lists.cs.columbia.edu>

https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors