[Asterisk-Dev] INFO and Duration=250

[brett at websmyths.com]

On 10/17/2005, "James Sizemore" <james at deny.org> wrote:
> Doubling the value to 500 did not seem to effect the length of the
> tone played at all....hmmmmm. Back to the drawing board for me.
> Anyone know what this value is supposed to effect?
>
>>> I have a gateway using a Digium card to convert a PRI
>>> call to a sip call then I transport the sip call to a Cisco
>>> IAD where it is converted back to a PRI. This all works
>>> well except DTMF is sent with a duration of .25sec.
>>> PRI specs says this should be .25sec to .5sec so this
>>> is with in spec, however the PBX on the other side of
>>> the IAD does not reliable work with the DTMF tones
>>> the minimum allowable length. I found in the INFO packets
>>> where the DTMF is set to a duration or 250, I would like
>>> to change this to 500.
>>>
>>> Which file and class would be the correct place to change
>>> this value at?

Since it is the duration of the DTMF that goes INTO the PRI, I would be
looking at where that happens - the Cisco config or the Digium config.
Don't know a thing about the Cisco - but there is a toneduration in the
zapata.conf.

Since you say you get a call from the Digium card -> SIP -> Cisco -> PRI
I really think you need to look at the Cisco.

Brett