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[Kamailio-Users] default config...

carl Lougher

26 Feb 2009 26 Feb '09

1:59 a.m.

Howdy, I'm trying to remove the media/rtp streams from an asterisk server for natted users so would like to know if this is possible with kamailio. Qu's: What is the best option? rtpproxy/mediaproxy? nathelper? If i use kamailio to achieve this does it mean that i still have to carry the rtp streams through the kamailio server instead? Also will i need to change the logon info for the clients so they now logon to kamailio then i just point registrar to asterisk? Can i use kamailio for sip trunks to asterisk and carry rtp and natted clients media streams rather than register to asterisk? Many thanks, Taff..

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Daniel-Constantin Mierla

26 Feb 26 Feb

12:16 p.m.

Hello, On 02/26/2009 12:59 AM, carl Lougher wrote:

...

Howdy, I'm trying to remove the media/rtp streams from an asterisk server for natted users so would like to know if this is possible with kamailio.

yes it is possible. nathelper+rtpproxy is the option I use and prefer because of flexibility and performances. You can see an example at: http://www.voip-info.org/wiki/view/Kamailio+1.5.x+and+RTPProxy

...

Qu's: What is the best option? rtpproxy/mediaproxy? nathelper? If i use kamailio to achieve this does it mean that i still have to carry the rtp streams through the kamailio server instead?

through the rtpproxy server, which can be located on same or different machine than kamailio.

...

Also will i need to change the logon info for the clients so they now logon to kamailio then i just point registrar to asterisk? Can i use kamailio for sip trunks to asterisk and carry rtp and natted clients media streams rather than register to asterisk?

Yes, you can register to kamailio, see registrar and usrloc modules. Cheers, Daniel

...

Many thanks, Taff.. _______________________________________________ Kamailio (OpenSER) - Users mailing list Users(a)lists.kamailio.org http://lists.kamailio.org/cgi-bin/mailman/listinfo/users http://lists.openser-project.org/cgi-bin/mailman/listinfo/users

-- Daniel-Constantin Mierla http://www.asipto.com

carl Lougher

2:19 p.m.

Thanks for that. So does it mean by using rtpproxy you will therefore carry all the rtp streams through that server or can it be redirected to the sip provider from the endpoint? Also how do you put the kamailio server in the equation? Do you set it up as an external proxy for the clients or do you register the clients to it then just use asterisk for the media/vmail etc? --- On Thu, 26/2/09, Daniel-Constantin Mierla <miconda(a)gmail.com> wrote:

...

From: Daniel-Constantin Mierla <miconda(a)gmail.com> Subject: Re: [Kamailio-Users] Kamailio Newb questions To: c_lougher(a)yahoo.co.uk Cc: users(a)lists.kamailio.org Date: Thursday, 26 February, 2009, 9:16 AM Hello, On 02/26/2009 12:59 AM, carl Lougher wrote:

Howdy, I'm trying to remove the media/rtp streams from an

asterisk server for natted users so would like to know if this is possible with kamailio.

Qu's: What is the best option? rtpproxy/mediaproxy? nathelper? If i use kamailio to achieve this does it mean that i

still have to carry the rtp streams through the kamailio server instead?

through the rtpproxy server, which can be located on same or different machine than kamailio.

Also will i need to change the logon info for the

clients so they now logon to kamailio then i just point registrar to asterisk?

Can i use kamailio for sip trunks to asterisk and

carry rtp and natted clients media streams rather than register to asterisk?

Yes, you can register to kamailio, see registrar and usrloc modules. Cheers, Daniel

Many thanks, Taff.. _______________________________________________ Kamailio (OpenSER) - Users mailing list Users(a)lists.kamailio.org

http://lists.kamailio.org/cgi-bin/mailman/listinfo/users

http://lists.openser-project.org/cgi-bin/mailman/listinfo/users

-- Daniel-Constantin Mierla http://www.asipto.com

Daniel-Constantin Mierla

3:27 p.m.

On 02/26/2009 01:19 PM, carl Lougher wrote:

...

Thanks for that. So does it mean by using rtpproxy you will therefore carry all the rtp streams through that server

yes, that is the role of RTPProxy - to proxy the RTP streams, therefore those go via the server. If you want end-to-end RTP stream, then look at STUN, if the phones are not behind symmetric nat, it can help.

...

or can it be redirected to the sip provider from the endpoint? Also how do you put the kamailio server in the equation? Do you set it up as an external proxy for the clients or do you register the clients to it then just use asterisk for the media/vmail etc?

I do everything in kamailio but the media services which i do with asterisk (vmail, ivr, ...) - authentication, registration, call routing is done in kamailio. Cheers, Daniel

...

--- On Thu, 26/2/09, Daniel-Constantin Mierla <miconda(a)gmail.com> wrote:

Howdy, I'm trying to remove the media/rtp streams from an

asterisk server for natted users so would like to know if this is possible with kamailio.

Qu's: What is the best option? rtpproxy/mediaproxy? nathelper? If i use kamailio to achieve this does it mean that i

still have to carry the rtp streams through the kamailio server instead?

through the rtpproxy server, which can be located on same or different machine than kamailio.

Also will i need to change the logon info for the

clients so they now logon to kamailio then i just point registrar to asterisk?

Can i use kamailio for sip trunks to asterisk and

carry rtp and natted clients media streams rather than register to asterisk?

Yes, you can register to kamailio, see registrar and usrloc modules. Cheers, Daniel

Many thanks, Taff.. _______________________________________________ Kamailio (OpenSER) - Users mailing list Users(a)lists.kamailio.org

http://lists.kamailio.org/cgi-bin/mailman/listinfo/users http://lists.openser-project.org/cgi-bin/mailman/listinfo/users

-- Daniel-Constantin Mierla http://www.asipto.com

_______________________________________________ Kamailio (OpenSER) - Users mailing list Users(a)lists.kamailio.org http://lists.kamailio.org/cgi-bin/mailman/listinfo/users http://lists.openser-project.org/cgi-bin/mailman/listinfo/users

-- Daniel-Constantin Mierla http://www.asipto.com

carl Lougher

27 Feb 27 Feb

1:07 a.m.

So if i just want to hook off the rtp stream between endpoint and sip provider then am i better off to go for a stun server than nathelper/rtpproxy? What are you using rtpproxy for that is different than stun? --- On Thu, 26/2/09, Daniel-Constantin Mierla <miconda(a)gmail.com> wrote:

...

From: Daniel-Constantin Mierla <miconda(a)gmail.com> Subject: Re: [Kamailio-Users] Kamailio Newb questions To: c_lougher(a)yahoo.co.uk Cc: users(a)lists.kamailio.org Date: Thursday, 26 February, 2009, 12:27 PM On 02/26/2009 01:19 PM, carl Lougher wrote:

Thanks for that. So does it mean by using rtpproxy you

will therefore carry all the rtp streams through that server yes, that is the role of RTPProxy - to proxy the RTP streams, therefore those go via the server. If you want end-to-end RTP stream, then look at STUN, if the phones are not behind symmetric nat, it can help.

or can it be redirected to the sip provider from the

endpoint?

Also how do you put the kamailio server in the

equation? Do you set it up as an external proxy for the clients or do you register the clients to it then just use asterisk for the media/vmail etc?

I do everything in kamailio but the media services which i do with asterisk (vmail, ivr, ...) - authentication, registration, call routing is done in kamailio. Cheers, Daniel

--- On Thu, 26/2/09, Daniel-Constantin Mierla

<miconda(a)gmail.com> wrote: >

>> From: Daniel-Constantin Mierla <miconda(a)gmail.com>

> Subject: Re: [Kamailio-Users] Kamailio Newb

questions

> To: c_lougher(a)yahoo.co.uk > Cc: users(a)lists.kamailio.org > Date: Thursday, 26 February, 2009, 9:16 AM > Hello, > > On 02/26/2009 12:59 AM, carl Lougher wrote: > >> Howdy, >> I'm trying to remove the media/rtp streams

from an

>> > asterisk server for natted users so would like to

know if

> this is possible with kamailio. > >> > yes it is possible. nathelper+rtpproxy is the

option I use

> and prefer because of flexibility and

performances. You can see an

> example at: >

http://www.voip-info.org/wiki/view/Kamailio+1.5.x+and+RTPProxy

> > > >> Qu's: >> What is the best option? >> rtpproxy/mediaproxy? >> nathelper? >> >> If i use kamailio to achieve this does it mean

that i

>> > still have to carry the rtp streams through the

kamailio

> server instead? > >> > through the rtpproxy server, which can be located

on same

> or different machine than kamailio. > > >> Also will i need to change the logon info for

the

>> > clients so they now logon to kamailio then i just

point

> registrar to asterisk? > >> Can i use kamailio for sip trunks to asterisk

and

>> > carry rtp and natted clients media streams rather

than

> register to asterisk? > >> > Yes, you can register to kamailio, see registrar

and usrloc

> modules. > > Cheers, > Daniel > > >> Many thanks, >> Taff.. >> >> >> >> >> >> >>

_______________________________________________

>> Kamailio (OpenSER) - Users mailing list >> Users(a)lists.kamailio.org >> >> >

http://lists.kamailio.org/cgi-bin/mailman/listinfo/users

http://lists.openser-project.org/cgi-bin/mailman/listinfo/users

-- Daniel-Constantin Mierla http://www.asipto.com

_______________________________________________ Kamailio (OpenSER) - Users mailing list Users(a)lists.kamailio.org

http://lists.kamailio.org/cgi-bin/mailman/listinfo/users

http://lists.openser-project.org/cgi-bin/mailman/listinfo/users >

-- Daniel-Constantin Mierla http://www.asipto.com

Daniel-Constantin Mierla

11:09 a.m.

On 02/27/2009 12:07 AM, carl Lougher wrote:

...

So if i just want to hook off the rtp stream between endpoint and sip provider then am i better off to go for a stun server than nathelper/rtpproxy?

nathelper/rtpproxy does rtp relay on server, so the rtp goes: [caller] === [rtpproxy] === [callee] In case of dealing with symmetric NAT, it is the only feasible way now to make it work. If STUN is used, the rtp goes: [caller] === [callee] . But does not work for symmetric nat. The best is to combine both of them so you get as less as possible RTP relaying on server. Cheers, Daniel

...

What are you using rtpproxy for that is different than stun? --- On Thu, 26/2/09, Daniel-Constantin Mierla <miconda(a)gmail.com> wrote:

From: Daniel-Constantin Mierla <miconda(a)gmail.com> Subject: Re: [Kamailio-Users] Kamailio Newb questions To: c_lougher(a)yahoo.co.uk Cc: users(a)lists.kamailio.org Date: Thursday, 26 February, 2009, 12:27 PM On 02/26/2009 01:19 PM, carl Lougher wrote:

Thanks for that. So does it mean by using rtpproxy you

or can it be redirected to the sip provider from the

endpoint?

Also how do you put the kamailio server in the

equation? Do you set it up as an external proxy for the clients or do you register the clients to it then just use asterisk for the media/vmail etc?

I do everything in kamailio but the media services which i do with asterisk (vmail, ivr, ...) - authentication, registration, call routing is done in kamailio. Cheers, Daniel

--- On Thu, 26/2/09, Daniel-Constantin Mierla

<miconda(a)gmail.com> wrote:

>> From: Daniel-Constantin Mierla >> <miconda(a)gmail.com>

> Subject: Re: [Kamailio-Users] Kamailio Newb >

questions

> To: c_lougher(a)yahoo.co.uk > Cc: users(a)lists.kamailio.org > Date: Thursday, 26 February, 2009, 9:16 AM > Hello, > > On 02/26/2009 12:59 AM, carl Lougher wrote: > > >> Howdy, >> I'm trying to remove the media/rtp streams >>

from an

>> >> > asterisk server for natted users so would like to >

know if

> this is possible with kamailio. > > >> >> > yes it is possible. nathelper+rtpproxy is the >

option I use

> and prefer because of flexibility and >

performances. You can see an

> example at: > >

http://www.voip-info.org/wiki/view/Kamailio+1.5.x+and+RTPProxy

> > >> Qu's: >> What is the best option? >> rtpproxy/mediaproxy? >> nathelper? >> >> If i use kamailio to achieve this does it mean >>

that i

>> >> > still have to carry the rtp streams through the >

kamailio

> server instead? > > >> >> > through the rtpproxy server, which can be located >

on same

> or different machine than kamailio. > > > >> Also will i need to change the logon info for >>

the

>> >> > clients so they now logon to kamailio then i just >

point

> registrar to asterisk? > > >> Can i use kamailio for sip trunks to asterisk >>

and

>> >> > carry rtp and natted clients media streams rather >

than

> register to asterisk? > > >> >> > Yes, you can register to kamailio, see registrar >

and usrloc

> modules. > > Cheers, > Daniel > > > >> Many thanks, >> Taff.. >> >> >> >> >> >> >> >>

_______________________________________________

>> Kamailio (OpenSER) - Users mailing list >> Users(a)lists.kamailio.org >> >> >>

http://lists.kamailio.org/cgi-bin/mailman/listinfo/users

> >

http://lists.openser-project.org/cgi-bin/mailman/listinfo/users

> > -- Daniel-Constantin Mierla http://www.asipto.com

_______________________________________________ Kamailio (OpenSER) - Users mailing list Users(a)lists.kamailio.org

http://lists.kamailio.org/cgi-bin/mailman/listinfo/users http://lists.openser-project.org/cgi-bin/mailman/listinfo/users

-- Daniel-Constantin Mierla http://www.asipto.com

Alex Balashov

26 Feb 26 Feb

3:36 p.m.

Daniel, I hate to open up an old and tired can of worms, but are there any recent performance tests that indicate whether rtpproxy or Mediaproxy 2.0 scales better? Mediaproxy 2.0 uses API calls into the kernel's IP forwarding subsystem now so I wonder if it can do better than rtpproxy running in userspace. Like you, I much prefer rtpproxy - it's so much simpler and more flexible to deal with. Just wondering. -- Alex Daniel-Constantin Mierla wrote:

...

Hello, On 02/26/2009 12:59 AM, carl Lougher wrote:

Howdy, I'm trying to remove the media/rtp streams from an asterisk server for natted users so would like to know if this is possible with kamailio.

Qu's: What is the best option? rtpproxy/mediaproxy? nathelper? If i use kamailio to achieve this does it mean that i still have to carry the rtp streams through the kamailio server instead?

through the rtpproxy server, which can be located on same or different machine than kamailio.

Yes, you can register to kamailio, see registrar and usrloc modules. Cheers, Daniel

-- Alex Balashov Evariste Systems Web : http://www.evaristesys.com/ Tel : (+1) (678) 954-0670 Direct : (+1) (678) 954-0671 Mobile : (+1) (678) 237-1775

Daniel-Constantin Mierla

3:50 p.m.

Hi Alex, On 02/26/2009 02:36 PM, Alex Balashov wrote:

...

Daniel, I hate to open up an old and tired can of worms, but are there any recent performance tests

never compared the two of them. I used only rtpproxy so far and I was very happy, mainly regarding the development and community support. mediaproxy is in first place python, which slower than native C.

...

that indicate whether rtpproxy or Mediaproxy 2.0 scales better? Mediaproxy 2.0 uses API calls into the kernel's IP forwarding subsystem now so I wonder if it can do better than rtpproxy running in userspace.

Sometimes I prefer not to mess up with the kernel, I rather have an application crashed and restarted by monit or similar tool, than a kernel panic and full system crash. I do not know if using just kernel space is much faster as I haven't tested, however, there is a C alternative in SER (to be available soon via the http://sip-router.org project) for rtp relaying via kernel: http://cvs.berlios.de/cgi-bin/viewvc.cgi/ser/sip_router/modules/iptrtpproxy/ I would bet on it if I would get into rtpproxy limitations, so far didn't happened. RTPProxy has the advantage of a public source repository, which is more convenient for me to deal with, as opposite to tarballs downloads. With a public repository I can track changes, report and fix issues easier. To conclude, it might be just a matter of choice for rtp relay, but the nathelper module is much flexible and supported by many core developers of kamailio and ser. Cheers, Daniel

...

Like you, I much prefer rtpproxy - it's so much simpler and more flexible to deal with. Just wondering. -- Alex Daniel-Constantin Mierla wrote:

Hello, On 02/26/2009 12:59 AM, carl Lougher wrote:

Howdy, I'm trying to remove the media/rtp streams from an asterisk server for natted users so would like to know if this is possible with kamailio.

Qu's: What is the best option? rtpproxy/mediaproxy? nathelper? If i use kamailio to achieve this does it mean that i still have to carry the rtp streams through the kamailio server instead?

through the rtpproxy server, which can be located on same or different machine than kamailio.

Yes, you can register to kamailio, see registrar and usrloc modules. Cheers, Daniel > Many thanks, > Taff.. > > > > > > > > _______________________________________________ > Kamailio (OpenSER) - Users mailing list > Users(a)lists.kamailio.org > http://lists.kamailio.org/cgi-bin/mailman/listinfo/users > http://lists.openser-project.org/cgi-bin/mailman/listinfo/users > > >

-- Daniel-Constantin Mierla http://www.asipto.com

Alex Balashov

3:54 p.m.

Daniel-Constantin Mierla wrote:

...

Hi Alex, On 02/26/2009 02:36 PM, Alex Balashov wrote:

Daniel, I hate to open up an old and tired can of worms, but are there any recent performance tests

I agree with everything you say, and understand that rtpproxy adheres much more closely to the Kamailio technology and political stack. :) Although Mediaproxy is in Python, the relaying is not done in Python, so what I wonder is just objectively whether kernel-based relay is faster than userspace relay - even if in native C and in a very simple and lean binary. -- Alex Balashov Evariste Systems Web : http://www.evaristesys.com/ Tel : (+1) (678) 954-0670 Direct : (+1) (678) 954-0671 Mobile : (+1) (678) 237-1775

Daniel-Constantin Mierla

5:57 p.m.

On 02/26/2009 02:54 PM, Alex Balashov wrote:

...

Daniel-Constantin Mierla wrote:

Hi Alex, On 02/26/2009 02:36 PM, Alex Balashov wrote:

Daniel, I hate to open up an old and tired can of worms, but are there any recent performance tests

never tested, maybe someone else can comment. I will do it probably when rtpproxy in no longer enough :-) ... Cheers, Daniel -- Daniel-Constantin Mierla http://www.asipto.com

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Alex Balashov
carl Lougher
Daniel-Constantin Mierla