Thirdlane.com logo

SIP Privacy header - RFC 3233 Caller ID withold

Posted by iannmac on Wed, 05/27/2009
Forums
Thirdlane platform General Questions

Hi All,

Can anybody give me some pointers on getting Privacy headers included in outgoing SIP Trunk calls?

I am using SNOM phones, and when I withold CLI they send the CLI as anonymous, and then set the Privacy headers.

However Asterisk/Thirdlane is then re-inserting the extension number and not passing on the Privacy headers to the outbound SIP trunk.

I can see posts about adding stuff like
SIPAddHeader(P-Preferred-Identity: )

I am relatively new to Asterisk, so where should this be done?

Submitted by eeman on Wed, 05/27/2009 Permalink

It all depends on your provider and what they will accept.

what type of connection: analog, pri/ti, SIP, IAX2

who is your provider?

do they trust remote-part-ID?

does your snom phones use remote party id to mark it private?

Do you just want a *67 option to mark private?

Submitted by iannmac on Wed, 05/27/2009 Permalink

Thanks for the quick response.

>It all depends on your provider and what they will accept.

>what type of connection: analog, pri/ti, SIP, IAX2

SIP

>who is your provider?

Me :-)

I have asterisk connected to a CIsco CUBE, and then on to AN Other Carrier, so in the first instance I have a SIP trunk to a Cisco 2851 that I control.

This then has a SIP trunk to AN Other Carrier.

>do they trust remote-part-ID?

Yes, they state they are compliant with rfc3233

>does your snom phones use remote party id to mark it private?

Yes, I have the following in the call from the phone

From: "Anonymous" ;tag=k3aha3drp4

Privacy: id

P-Preferred-Identity: "1760"

P-Key-Flags: keys="3"

>Do you just want a *67 option to mark private?

That would be nice as well

thanks

Submitted by iannmac on Wed, 05/27/2009 Permalink

The *67 was a clue :-)

I added

exten => _*67XXXXXXXXXXX,1,SetCallerPres(prohib_not_screened)

exten => _*67XXXXXXXXXXX,2,Goto(dialout-context,${EXTEN:3},1)

and could get it to work for when I dial *67

Still not working when the phone sets the parameters directly.

Submitted by eeman on Wed, 05/27/2009 Permalink

in sip.conf under [general] add

sendrpid=yes

trustrpid=yes

you could make your pattern

_*67. if you wanted to make it easier. I made a feature code that looks like this..

script is

[macro-bgnv-callidblock]

exten => s,1,SetCallerPres(prohib_passed_screen)

exten => s,n,Goto(from-inside-redir${TL_DASH}${tenant},${MACRO_EXTEN:${ARG1}},1)

and then assigned it to a feature code pattern _*67.