[cisco-voip] SIP and MTP

[Jens Faulhaber]

Thx for the quick reply...
I'm familiar with the doc you provided, but still do not get, if any call over a SIP trunk requires the MTP? Even if I do not need DTMF? Because that would mean that every RTP stream incoming/outgoing over the SIP trunk would terminate on the CM and that does not scale for 1000 callcenter agents :( .....  
Thx
Jens

-----Ursprüngliche Nachricht-----
Von: Andrius Kislas [mailto:Andrius-conf at elsis.lt] 
Gesendet: Donnerstag, 4. Mai 2006 10:51
An: Jens Faulhaber
Cc: cisco-voip at puck.nether.net
Betreff: Re: [cisco-voip] SIP and MTP

> I'm confused .... about SIP trunks on CCM J
> 
> The documentation states that SIP requires a MTP for DTMF processing....
> and the config pages of CCM do not allow to disable MTP.
> 
> Does that mean all calls, which are processed via a SIP trunk terminate
> on the CCMs MTP? Or just calls how need DTMF? Or always because there
> could be DTMF involved?
> 
> Can anyone point out what happens there? How does that work?


http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_administration_guide_chapter09186a008055cd69.html#wp1127648