[cisco-voip] Pbx blasting digits time out.

[Justin Steinberg]

could also be that you do not have 'direct-inward-dial' configured on your
inbound POTS dial-peer.
can you post your IAD config ?

On Sat, Jan 17, 2009 at 6:52 AM, Philip Walenta <pwalenta at wi.rr.com> wrote:

>  Just taking a wierd guess here...but since this is a PRI the digits
> should be getting signalled over the D channel.  The method that the Mitel
> is using is called "overlap sending" which means you'd need to have the
> router support "overlap receiving".
>
> The unfortunate thing is that this function is not supported on certain
> switch types.
>
> Here's a config snippet showing overlap receiving that might help:
>
>
> interface Serial1/0:15
> description D-channel for ECN-4
> no ip address
> no logging event link-status
> isdn switch-type primary-qsig
> isdn overlap-receiving
> isdn incoming-voice voice
> isdn contiguous-bchan
> isdn bchan-number-order ascending
> no cdp enable
>
>
> Here's a reference for a description of overlap sending:
>
> http://www.nmscommunications.com/DevPlatforms/NL/TIN/April2007/SupTip.htm
>
>  ------------------------------
> *From:* cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] *On Behalf Of *Richey
> *Sent:* Friday, January 16, 2009 8:14 PM
> *To:* cisco-voip at puck.nether.net
> *Subject:* [cisco-voip] Pbx blasting digits time out.
>
>  I hope that I can describe this correctly.   I have an IAD2431 that is
> connected to an Intertel/MItel 5000 phone system.    I am using the T1
> interface to hand the phone system a 16 channel PRI.  The problem is that
> the phone system is blasting digits before the IAD can bring up dial
> tone.     The customer picks up the phone gets dial tone that is generated
> by the phone system and they dial 8 + 7 digits.  That dial tone times out,
> blasts the 7 digits and the IAD brings up dial tone.  To the caller they
> hear a second dial tone which is being generated by the IAD.  During the
> second dial tone you can retype the 7 digits and the call will
> complete.       Has anyone run into this before?  It's almost like it's a
> timing issue.
>
>
>
> The Mitel/Internet tech says they are very limited in what they can change
> in their phone system so I have to find a way to make this work.
> Finding help with the 2431s has been very difficult because they seem to be
> a rare Cisco box.    The majority of my searches end up taking me to someone
> who wants to sell me an IAD2431 and the help I can find is pretty much one
> site copying another sites text.   I am hoping someone has had a similar
> problem with another similar Cisco product.
>
>
>
> Richey
>
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>
>
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