Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
New Member

SIP trunk and methods

Experts:

why we need an MTP for SIp trunks and which methods are supported for CCM at this moment? I've ccm 4.1.3SR1

1 REPLY
Green

Re: SIP trunk and methods

-----------------------------------------------------

We need MTP because of the following:

- Empty capability set for mid-call feature invocations by the Cisco IP Phone.

- DMTF for RFC2823 to signalling-band tones.

- Call progress tones when a Cisco IP Phone invokes mid-call features.

CCM supports :

- INVITE

- BYE

- CANCEL

- ACK

- PRACK

- OPTIONS

- UPDATE

http://www.cisco.com/univercd/cc/td/doc/product/voice/c_callmg/4_0/sys_ad/4_0_1/ccmsys/a08sip.htm#1141536

Gonz

159
Views
5
Helpful
1
Replies
CreatePlease to create content