[cisco-voip] Collect Calls

[Nick Matthews]

To debug DTMF:

SIP:
debug ccsip messages
debug voip rtp session named

MGCP:
debug mgcp packet

H.323
debug h225 asn1

RFC2833:
debug voip rtp session named

debug vpm signal can be helpful for T1 CAS, FXO, FXS

debug voip dialpeer for SIP/H323 dial peer DTMF.


It may be a signaling issue rather than a pure DTMF issue as mentioned.

-nick

On Mon, Jul 26, 2010 at 12:28 PM, Philip Walenta <pwalenta at wi.rr.com> wrote:

>  One other odd possibility is the way the call is coming in.
>
>
>
> I know a while back (we’re talking a few years here) calls to certain
> toll-free IVR based systems were not working in a similar fashion.  The
> reason for this was that the IVR although it had answered the call was not
> sending a certain message to the phone company until the caller had gone at
> least one step into the IVR.  By not sending this one particular Q931
> message they were not billed for that first few moments of a call.  The side
> effect of not having sent that message meant CUCM also thought the call was
> not terminated and therefore was not changing the phone status from
> “Ring-out” to “connected”.
>
>
>
> It is likely the collect call might operate in a similar fashion.  Have
> someone test an inbound collect call and check the status on their phone
> when they’ve answered.  Is it showing “connected” or something else?
>
>
>
> *From:* cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] *On Behalf Of *Haas, Neal
> *Sent:* Monday, July 26, 2010 10:15 AM
>
> *To:* 'cisco-voip at puck.nether.net'
> *Subject:* [cisco-voip] Collect Calls
>
>
>
> We have staff that need to receive collect calls. When we press 1 the
> collect calls are not being accepted. I have no clue where to look, any
> ideas?
>
>
>
> Neal
>
>
>
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>
>
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