[SIPForum-discussion] SIP - PSTN

[Peili Xu]

Hi,

 

H.323 call control signaling derive from ITU-T Q.931 which have some common
part with current PSTN signaling. 

Where as SIP initially derive from Internet protocols like HTTP, which have
less relation ship with PSTN stile signaling.

 

Now in SIP field, there are solution called SIP-T or SIP-I to address this
problem, it is quite mature now a days.

 

Please refer to RFC3372, RFC3398 and ITU-T Q.1912.5 for more reference.

 

Regards!

 

Peili Xu

___________________________________________________________
Peili Xu
System Engineer Core Network Research & Standard Department
Huawei Technologies Co., Ltd
Email:   xupeili at huawei.com
Phone:  +86-755-28780808
Website: www.huawei.com
___________________________________________________________

-----Original Message-----
From: discussion-bounces at sipforum.org
[mailto:discussion-bounces at sipforum.org] On Behalf Of Ponrajdurai
Sent: Monday, July 25, 2005 12:03 PM
To: sipforum.org
Subject: [SIPForum-discussion] SIP - PSTN

 

Hi,

 

     In many articles, they have specified that H323 can be easily
integrated with PSTN but SIP cannot be easily integrated. Can anyone tell
the reason, why SIP with PSTN integration is difficult? and How did they
overcome this problem?

 

 

waiting for your reply

 

 

with regards

Ponrajdurai Sokkeswaran.

  _____  

Start your <http://us.rd.yahoo.com/evt=34442/*http:/www.yahoo.com/r/hs>  day
with Yahoo! - make it your home page 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sipforum.org/pipermail/discussion/attachments/20050725/d9651f07/attachment-0001.html>