How do I provide Dial tone on E&M T1

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Aug 25th, 2010
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I have 1 third party IVR connected to an H323 gateway via a Digital T1 E and M winkstart port.  I can make calls to the IVR but when a person tries to zero out, it tries to transfer call but it is not working.

The vendors says that I need to provide dial tone. How would I do that?

controller T1 0/0/1
clock source internal
ds0-group 0 timeslots 1-24 type e&m-wink-start
description IVR

This feature worked when connected to a MGCP gateway in a 4.2(3) environment.

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Overall Rating: 3.2 (5 ratings)
paolo bevilacqua Wed, 08/25/2010 - 07:50
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To my knowledge, no dial-tone is ever provided in E&M.

Beside, if the call is completed already, no dialtone should be ever further provided.

Likely there is another cause than what the IVR vendor is claiming.

thomuff Thu, 08/26/2010 - 12:23
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You are correct.

Here is what we have found.

The IVR is dialing the five extension ie 70002. However, the gateway is receiving the 7 and then trying to match dial peers on the seven. It is like it is not waiting for the other digits

Have any ideas.

paolo bevilacqua Thu, 08/26/2010 - 12:43
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Are you using MGCP or H.323?

In either case, one should look at your dialplan configuration.

To the person that rated my post above a "3", since the information I gave is 100% correct and made with the will to help, please avoid subrating my posts in the future.

thomuff Wed, 09/01/2010 - 10:45
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Here is what we found. 

The VRU was performing a hook flash and then sending DTMF digits.  So, we had to install a TCL script on the gateway in order for the blind transfer to work.

frlindse Wed, 09/01/2010 - 10:59
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In the debugs you should see the

hookflash from the IVR, check the duration.  The defa

ult hookflash timer is 150-1000 msec, if it's shorter it will be ignored, if

longer it will be considered a disconnect


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