[cisco-voip] Transcoding Meeting Place

Schmitz, Daniel Daniel.Schmitz at didas.de
Tue Jul 23 07:24:38 EDT 2013 

Hi John,

a last question.

The guys from china told me that if they call MPE the call can be established now but they don't hear any audio and after about 5 seconds the call is disconnected.
I placed a phone in the device pool of the Intercluster trunk and it works just fine.
If the guys from china dial the Contact Center in Germany it also works just fine.

Any idea?

Regards
Daniel

Senior IT-Specialist
Team leader Network & Communication Services
Managed & Cloud Services

________________________________
DIDAS Business Services GmbH | Bernerstr. 38 | 60437 Frankfurt

Tel.: +49 69-95022-327 | Fax: +49 69-95022-77327 | Mobil: +49 172-525 2383
Mail: Daniel.Schmitz at didas.de<mailto:Daniel.Schmitz at didas.de> | Web: www.didas.de<http://www.didas.de/>
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Von: Divin John (dijohn) [mailto:dijohn at cisco.com]
Gesendet: Dienstag, 23. Juli 2013 10:36
An: Schmitz, Daniel; voip puck
Betreff: Re: AW: [cisco-voip] Transcoding Meeting Place

Hi Daniel,

A good design would be.

CUCM Germany has a SIP trunk to MPE                      - The SIP trunks device pool has a MRGL with the transcoder assigned.
CUCM Germany has a SIP trunk to CUCM China          - The SIP trunks device pool has a MRGL with the transcoder assigned.

The region setup looks like this:
Between CUCM Germany and MPE                              - only G.729 allowed (do I have to change this to G.711?)
Between CUCM Germany and CUCM China                  - only G.729 allowed

Change the Region settings like this.

Sip Trunk to CUCM China - Region-SIPTRUNK-CHINA
MPE Sip Trunk - REGION MPE
Xcoder could be in Region MPE oe REGIOn Xcoder.

Region-SIPTRUNK-CHINA to REGION MPE G729
REGION Xcoder to Region-SIPTRUNK-CHINA G729
REGION Xcoder to Region-MPE G711

So, in the end you would have..
MPE ---> China (G729)
Which would invoke a xcoder.

MPE --> G711 --> Transcoder -->G729 ---> China.

Regards,
Divin



From: <Schmitz>, Daniel <Daniel.Schmitz at didas.de<mailto:Daniel.Schmitz at didas.de>>
Date: Tuesday, 23 July 2013 1:52 PM
To: Divin John <dijohn at cisco.com<mailto:dijohn at cisco.com>>, voip puck <cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>>
Subject: AW: [cisco-voip] Transcoding Meeting Place

Hi I think I fixed the problem, I simply used another gateway and there the universal command is possible.
I will let you know if it works now.

Thanks for the useful hint :)

Regards
Daniel

Senior IT-Specialist
Team leader Network & Communication Services
Managed & Cloud Services

________________________________
DIDAS Business Services GmbH |Bernerstr. 38 | 60437 Frankfurt

Tel.: +49 69-95022-327 | Fax: +49 69-95022-77327 | Mobil: +49 172-525 2383
Mail: Daniel.Schmitz at didas.de<mailto:Daniel.Schmitz at didas.de> | Web: www.didas.de<http://www.didas.de/>
AG Düsseldorf HRB 63231 | USt-ID-Nr.: DE811548338 | Geschäftsführer: Dirk Kiefer

________________________________

Der Inhalt dieser E-Mail ist vertraulich und ausschließlich für den bezeichneten Adressaten bestimmt. Wenn Sie nicht der vorgesehene Adressat dieser E-Mail oder dessen Vertreter sein sollten, so beachten Sie bitte, dass jede Form der Kenntnisnahme, Veröffentlichung, Vervielfältigung oder Weitergabe des Inhalts dieser E-Mail unzulässig ist. Wir bitten Sie, sich in diesem Fall mit dem Absender der E-Mail in Verbindung zu setzen. Wir möchten Sie außerdem darauf hinweisen, dass die Kommunikation per E-Mail über das Internet unsicher ist, da für unberechtigte Dritte grundsätzlich die Möglichkeit der Kenntnisnahme und Manipulation besteht.

The information contained in this e-mail is confidential. It is intended solely for the addressee. Access to this e-mail by anyone else is unauthorized. If you are not the intended recipient, any form of disclosure, reproduction, distribution or any action taken or refrained from in reliance on it, is prohibited and may be unlawful. Please notify the sender immediately. We also like to inform you that communication via e-mail over the internet is insecure because third parties may have the possibility to access and manipulate e-mails.

Von: Schmitz, Daniel
Gesendet: Dienstag, 23. Juli 2013 09:53
An: 'Divin John (dijohn)'; voip puck
Betreff: AW: [cisco-voip] Transcoding Meeting Place

Hi John,

the MRGL setup looks like this:

CUCM Germany has a SIP trunk to MPE                      - The SIP trunks device pool has a MRGL with the transcoder assigned.
CUCM Germany has a SIP trunk to CUCM China          - The SIP trunks device pool has a MRGL with the transcoder assigned.

The region setup looks like this:
Between CUCM Germany and MPE                              - only G.729 allowed (do I have to change this to G.711?)
Between CUCM Germany and CUCM China                  - only G.729 allowed


What do you mean with meeting place MRGL? The MRGL of the SIP trunk pointing to MPE?
I am not able to enter the  IOS command "dspfarm profile 3 transcode universal"

Regards
Daniel


Von: Divin John (dijohn) [mailto:dijohn at cisco.com]
Gesendet: Dienstag, 23. Juli 2013 09:29
An: Divin John (dijohn); Schmitz, Daniel; voip puck
Betreff: Re: [cisco-voip] Transcoding Meeting Place

Meeting place MRGL needs the transcoder. CUCM tries to invoke the xcoder on the HEAVY weight codec side (G711 in this case).

Regards,
Divin

From: Divin John <dijohn at cisco.com<mailto:dijohn at cisco.com>>
Date: Tuesday, 23 July 2013 12:50 PM
To: "Schmitz, Daniel" <Daniel.Schmitz at didas.de<mailto:Daniel.Schmitz at didas.de>>, voip puck <cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>>
Subject: Re: [cisco-voip] Transcoding Meeting Place

I would say, CUCM Germany. Also, note: normal transcoder support only G711 to any other codec. One leg has to be G711. To remove this restriction configure Universal Transcoders (any codec to any codec) "dspfarm profile 3 transcode universal"

Also, make sure, Meeting place to Transcoder is G711
Transcoder to SIP Trunk is G729.
China Phone to SIp Trunk is G729.

Regards,
Divin

From: <Schmitz>, Daniel <Daniel.Schmitz at didas.de<mailto:Daniel.Schmitz at didas.de>>
Date: Tuesday, 23 July 2013 12:42 PM
To: voip puck <cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>>
Subject: [cisco-voip] Transcoding Meeting Place

Hi all,
a customer has the following setup.


-      Across the MPLS, G.729 should be used

-      Meeting Place is just configured for High Capacity (G.711) only

-      CUCM has an IOS transcoder with the following configuration
dspfarm profile 3 transcode
codec g711ulaw
codec g711alaw
codec g729ar8
codec g729abr8
codec g729r8
codec g729br8
maximum sessions 6
associate application SCCP

For some reason it is not possible to call from China to the Meeting Place, as soon as I allow G.711 via the SIP trunk everything works just fine, but with G.729 the call cannot be established.
Which component needs the correct MRGL for the transcoding?


[cid:image001.png at 01CE87A7.FADB3040]

Do I miss anything?

Regards
Daniel




Senior IT-Specialist
Team leader Network & Communication Services
Managed & Cloud Services

________________________________
DIDAS Business Services GmbH |Bernerstr. 38 | 60437 Frankfurt

Tel.: +49 69-95022-327 | Fax: +49 69-95022-77327 | Mobil: +49 172-525 2383
Mail: Daniel.Schmitz at didas.de<mailto:Daniel.Schmitz at didas.de> | Web: www.didas.de<http://www.didas.de/>
AG Düsseldorf HRB 63231 | USt-ID-Nr.: DE811548338 | Geschäftsführer: Dirk Kiefer

________________________________

Der Inhalt dieser E-Mail ist vertraulich und ausschließlich für den bezeichneten Adressaten bestimmt. Wenn Sie nicht der vorgesehene Adressat dieser E-Mail oder dessen Vertreter sein sollten, so beachten Sie bitte, dass jede Form der Kenntnisnahme, Veröffentlichung, Vervielfältigung oder Weitergabe des Inhalts dieser E-Mail unzulässig ist. Wir bitten Sie, sich in diesem Fall mit dem Absender der E-Mail in Verbindung zu setzen. Wir möchten Sie außerdem darauf hinweisen, dass die Kommunikation per E-Mail über das Internet unsicher ist, da für unberechtigte Dritte grundsätzlich die Möglichkeit der Kenntnisnahme und Manipulation besteht.

The information contained in this e-mail is confidential. It is intended solely for the addressee. Access to this e-mail by anyone else is unauthorized. If you are not the intended recipient, any form of disclosure, reproduction, distribution or any action taken or refrained from in reliance on it, is prohibited and may be unlawful. Please notify the sender immediately. We also like to inform you that communication via e-mail over the internet is insecure because third parties may have the possibility to access and manipulate e-mails.


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