[cisco-voip] SIP audio conference bridge to CCM 4.1.3

[Ryan Ratliff]

Taken from a 7960 registered to CCM 4.1(3) running 8.0(7).
 
StationInit: (0000003) CapabilitiesRes capCount=8 caps= 25(120) 4(40) 2(40)
15(60) 16(60) 11(60) 12(60) 257(4) 
 
Do the test yourself if you want to confirm.
 

-Ryan 

 

  _____  

From: c3voip [mailto:c3voip at nc.rr.com] 
Sent: Thursday, November 20, 2008 12:43 PM
To: 'Ryan Ratliff'; 'Jason Burns'
Cc: cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] SIP audio conference bridge to CCM 4.1.3



Is that only if they are running SIP loads or do SCCP phones also support
RFC2833?

 

 

From: Ryan Ratliff [mailto:rratliff at cisco.com] 
Sent: Thursday, November 20, 2008 11:55 AM
To: 'c3voip'; 'Jason Burns'
Cc: cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] SIP audio conference bridge to CCM 4.1.3

 

Those phones have supported RFC2833 for a while now.

 

If you want to check if your device supports RFC2833 reset the phone and
look at the CCM trace of it re-registering. 

You'll find this message:

StationInit: (0000050) CapabilitiesRes capCount=12 caps= 25(40) 6(60) 4(40)
2(40) 7(60) 8(60) 86(60) 15(60) 16(60) 11(60) 12(60) 257(1).

 

The last item (257) indicates 2833 support.

 

-Ryan 

 

 

  _____  

From: c3voip [mailto:c3voip at nc.rr.com] 
Sent: Thursday, November 20, 2008 11:09 AM
To: 'Ryan Ratliff'; 'Jason Burns'
Cc: cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] SIP audio conference bridge to CCM 4.1.3

But I am guessing that our old 7940's and 60's don't.right?

 

-C

 

From: Ryan Ratliff [mailto:rratliff at cisco.com] 
Sent: Thursday, November 20, 2008 10:52 AM
To: 'c3voip'; 'Jason Burns'
Cc: cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] SIP audio conference bridge to CCM 4.1.3

 

It can't, though most phones support RFC 2833 natively.

 

-Ryan 

 

 

  _____  

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of c3voip
Sent: Thursday, November 20, 2008 10:49 AM
To: 'Jason Burns'
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] SIP audio conference bridge to CCM 4.1.3

How can CUCM 6.X or 7.X translate SCCP DTMF from out-of-path to in-path for
SIP without MTP's?  How does that work?

 

-C

 

 

From: Jason Burns [mailto:burns.jason at gmail.com] 
Sent: Wednesday, November 19, 2008 7:21 PM
To: c3voip
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] SIP audio conference bridge to CCM 4.1.3

 

A few options:

1. Upgrade to CCM 6.Xor 7.X so you don't need the MTP anymore.
2. Provision a separate CallManager (or 2) for the sole purpose of acting as
an MTP and increase the number of possible channels on it.
3. Purchase some CMMs
4. Purchase some 3845s loaded with DSPs.

Options 2, 3, and 4 don't really make much sense. As soon as you had CMMs,
3845s, or extra IPVMSApp CallManagers you wouldn't really need your SIP
conference solution anymore.

On Wed, Nov 19, 2008 at 3:46 PM, c3voip <c3voip at nc.rr.com> wrote:

I am considering a purchase of a SIP audio conference bridge to connect via
a SIP trunk from CCM 4.1.3.  

 

Since the SIP trunk requires an MTP, what could I use for MTP resources to
get up to 500 SCCP G.711 calls across my SIP trunk?  From what I have read
the CCM software MTP's are only good for 48 calls, what would be a better
solution?

 

Thanks,

-C

 


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