Re: [Serusers] Manipulate from_uri - sr-users

23 Feb 2005

Charles,

I'm not a real expert with RPID, but basically when you send a SIP
call to a PSTN gateway, the RPID header, if present, should be honored
by the PSTN gateway and it should use the values of the RPID  header
for things like Caller ID or Caller ID Blocking.

RPID may also have other functionality- but like I said, I'm not an
expert on the subject.

Regards,
Paul

On Thu, 24 Feb 2005 01:40:06 +0800, Charles Wang &lt;lazy.charles(a)gmail.com&gt; wrote:
...
  Dear Paul:

 I am a new user of SER sip. And would you please tell me an explain
 about what the RPID is??

 I want to control the call to PSTN with B2BUA of vovida or Asterisk.

 Best Regard
 Charles

 On Wed, 23 Feb 2005 10:33:26 -0500, Java Rockx &lt;javarockx(a)gmail.com&gt; wrote:
  Vitaly,

 I believe you are correct that RPID is only helpful during SIP->PSTN calls.

 I'm not real familiar with B2BUA, but if I were to introduce one in to
 my system, does that mean I need to have all the RTP traffic pass
 through my network as well, or does the B2BUA only deal with SIP
 messaging?

 Regards,
 Paul

 On Wed, 23 Feb 2005 10:14:18 -0500, Vitaly Nikolaev
 &lt;vitaly(a)voipsonic.com&gt; wrote:

 The answer is B2BUA

 There actually two ways,

 First is b2bua which is nice (for me ok.. I like it :)

 Second if you assign the CallerID number to device.. the real callerid, (for
 example in my network we use some fake numbers into devices and then change
 it do real callerid (did) in b2bua), then some devices, for example SIPURA,
 can send Anonymous as name in From and Contact and some GWs, will use it and
 hide callerid on outgoing call.

 And third:

 And there are also Remote-Party-Id: field in SIP that partially supported by
 SER and supported by most of GW and carriers, and that is probably RIGHT way
 to do that.

 When PSTN GW sends call to outside of ur network, it no just skip callerid,
 u can do  it but it is wrong, it make it private, so usual ppl will not see
 it but for example 911 and some toll free subscriber will see. That right
 way and that how everybody should do cli blocking.

 What is wrong in this method is that if you call goes from SIP to SIP and
 you use as me fake CLI on devices, customers will see fake numbers because
 as far as I know SIP devices does not support RPID (please correct me if I
 am wrong) so in my case I will have to use combination of N1 and N3..

 -----Original Message-----
 From: serusers-bounces(a)iptel.org [mailto:serusers-bounces@lists.iptel.org] On
 Behalf Of Java Rockx
 Sent: Wednesday, February 23, 2005 7:20 AM
 To: Klaus Darilion
 Cc: serusers(a)lists.iptel.org
 Subject: Re: [Serusers] Manipulate from_uri

 Klaus,

 I realize that RFC3261 says do not modify the From header, however, my
 question is this;

 When making SIP-to-SIP calls between two subscribers on the same SIP
 proxy, how can one implement Caller ID Block when RPID is not usually
 honored by SIP UAs - since this is really for PSTN gateways?

 It seems that altering the From header in this case is the only
 option. Have I missed something?

 Regards,
 Paul

 On Wed, 23 Feb 2005 12:00:14 +0100, Klaus Darilion
 &lt;klaus.mailinglists(a)pernau.at&gt; wrote:
  Hi Mik!

 Do not modify the From: or To: URI - this is not allowed (RFC 3261) and
 will cause problems.

 regards,
 klaus

 Mik Cheez wrote:
 > Since I'm able to modify the URI for relaying, I would assume there
 > would be a way to modify the FROM_URI as well.  Has anyone managed to do
 > this with SER acting as a proxy?  Any other possible avenues to modify
 > the CALLID?
 >
 > Best regards
 >
 > _______________________________________________
 > Serusers mailing list
 > serusers(a)lists.iptel.org
 > http://lists.iptel.org/mailman/listinfo/serusers
 >
 >

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