No two way communication is a problem of NAT in general. If session has been established then it’s not codec problem.

From: toqeer ali [mailto:toqeer83@gmail.com]
Sent: Thursday, November 12, 2009 9:25 AM
To: Denis Putyato
Cc: users@lists.kamailio.org
Subject: Re: [Kamailio-Users] Register Request Forward

i have a problem with codec. when i call to canada from kamailio to PSTN, i could not listen his/her voice as they listen( no two way communication)

but when call to other countries it works... Basically call to canada support g729 can i define any codec information in kamailio to G729.

Basically the problem is only with local number when you dial with extension 1 and when you dial with 08 it works... 08 is international gateway of canada...

X-lite i am using as a softphone.

please help

2009/11/11 Denis Putyato <denis7979@mail.ru>

“can i use regular expression in $fu=XXX”

You can use regexp. $fu=~”expression”

From: toqeer ali [mailto:toqeer83@gmail.com]
Sent: Wednesday, November 11, 2009 3:08 PM

To: Denis Putyato
Cc: users@lists.kamailio.org
Subject: Re: [Kamailio-Users] Register Request Forward

Hmmm

it works now i just remove Record Route function and it works,,, now i can dial from 602 to 601... thanks :).

i will start work on how i will register multiple extension via kamailio to asterisk ... can i use regular expression in $fu=XXX instead of actual extension extension...

2009/11/11 Denis Putyato <denis7979@mail.ru>

Registration is a process for telling SoftSwitch (in your variant - Asterisk) where (on which username, IP address and port) the SoftSwitch must send INVITE when received incoming call for 601. Try to understand where your asterisk try to send INVITE when you try to call from 602 to 601.

ngrep utility will help you (http://ngrep.sourceforge.net/download.html)

From: toqeer ali [mailto:toqeer83@gmail.com]
Sent: Wednesday, November 11, 2009 2:18 PM

To: Denis Putyato
Cc: users@lists.kamailio.org
Subject: Re: [Kamailio-Users] Register Request Forward

Here is the update:

what i have done so for is that I have "Register extension 601" to asterisk via kamailio and it is registered!.

When i call to 602 (configured on 192.168.0.1 -- asterisk box) it calls and make connection and voice call also works (RTP Traffic is ok).

However, when i call to 601 from 602 (which is directly connected to asterisk without kamailio ), 601 can't receive call via kamailio. This is the main problem. Please guide me that how i will define this in kamailio (ip = 192.168.0.2) that xlite with extension 601 can receive call through 602 which is another extension on Asterisk.

In a nutshell: 601 (registered through Kamailio to Asterisk) ---can call ---> 602 (registered via Asterisk)

However: 602----cannot call ------> 601

please help.

2009/11/11 Denis Putyato <denis7979@mail.ru>

Try to use dlg_bridge(); function in dialog module

From: toqeer ali [mailto:toqeer83@gmail.com]
Sent: Wednesday, November 11, 2009 12:13 PM

To: Denis Putyato
Cc: users@lists.kamailio.org
Subject: Re: [Kamailio-Users] Register Request Forward

"that client send INVITE to asterisk via kamailio but no replay is in on this INVITE"

basically Asterisk receive the request and send back to kamailio but kamailio can't send back to xlite..

2009/11/11 Denis Putyato <denis7979@mail.ru>

«but call does not route back to me»

You mean, that incoming call from asterisk to client via kamailio doesn’t work or that client send INVITE to asterisk via kamailio but no replay is in on this INVITE?

From: toqeer ali [mailto:toqeer83@gmail.com]
Sent: Wednesday, November 11, 2009 10:16 AM

To: Denis Putyato
Cc: users@l

ists.kamailio.org

Subject: Re: [Kamailio-Users] Register Request Forward

Thanks Again for the prompt reply... Basicaly i want to route Register Requests for multiple asterisk via kamailio ... by using pattern matching of extensions...

is i am on the right path ?? or i can achieve this from dispatcher or load balancer module .... Basically i want to register specific extensions to specific asterisk boxes....

from your previous reply i can send call to asterisk and register to as well but call does not route back to me... any clue ...

2009/11/11 Denis Putyato <denis7979@mail.r

“The secret is that the other sip server was asterisk and i want route call to asterisk via kamailio :).”

I don’t understand why do you want to do any session with asterisk via kamailio… not directly to asterisk… but any way the decision is same – send() or rewritehost()

route {

if ($fU==”…”&&is_method(“INVITE”))

record_route();

rewritehost(“192.168.0.1”);

t_relay();

}

Do this before authentication checking is made in kamailio.

From: toqeer ali [mailto:toqeer83@gmail.com]
Sent: Wednesday, November 11, 2009 6:49 AM
To: Denis Putyato
Cc: users@lists.kamailio.org
Subject: Re: [Kamailio-Users] Register Request Forward

Thanks it Registered but i can't call on this .. "authentication Required from proxy". what i should do now.

The secret is that the other sip server was asterisk and i want route call to asterisk via kamailio :).

2009/11/10 Denis Putyato <denis7979@mail.ru>

If not secret, why do you want to use such scheme?

Your decision

send(); - core function.

{

If (is_method(“REGISTER”)&&$fU==”….”) send(“udp:192.168.0.1:5060”);

}

{

If (is_method(“REGISTER”)&&$fU==”….”) {

rewritehost(“192.168..0.1”);

t_relay();

}

From: users-bounces@lists.kamailio.org [mailto:users-bounces@lists.kamailio.org] On Behalf Of toqeer ali
Sent: Tuesday, November 10, 2009 1:56 PM
To: users@lists.kamailio.org
Subject: [Kamailio-Users] Register Request Forward

Hi all,

My question is how to forward Register Request to another sip server.

For example one user (X-lite) want to register with 192.168.0.1(sip server1) via 192.168.0.2(sip server 2).

it means that in the domain part of xlite is 192.168..0.2 and it basically register with 192.168.0.1.

192.168.0.2 will forward Register request to 192.168..0.1.

it will be very helpful if any one can answer.

Thanks

--
Toqeer Ali Syed

Red Hat Certified Engineer
mob: +92 321 9059916