[Asterisk-Users] Re: DTMF, Asterisk, External PSTN gateway, and PAP2

[Eric Wieling aka ManxPower]

Sherwood McGowan wrote:
> This is not an answer but rather an addition to the question. We're using a
> large scale VOIP only asterisk system that has PAP2 enduser units using
> inband as their DTMF mode. sip.conf is set for using inband as well, and we
> pass PSTN calls through a provider. 
> 
> Here's the problem, when our users call other IVR systems like banks and
> other voicemails they have been unable to always pass the keys they press.
> Sometimes if they press the keys slowly it works, but not all the time, and
> otherwise it definitely doesn't work. 
> 
> Anyone else had this problem and/or know of a possible solution?

diff -ur zaptel.orig/digits.h zaptel/digits.h
--- zaptel.orig/digits.h        2001-12-08 13:28:09.000000000 -0600
+++ zaptel/digits.h     2005-05-04 06:58:49.000000000 -0500
@@ -20,7 +20,7 @@
  #ifndef _DIGITS_H
  #define _DIGITS_H

-#define DEFAULT_DTMF_LENGTH    100 * 8
+#define DEFAULT_DTMF_LENGTH    250 * 8
  #define DEFAULT_MFV1_LENGTH    60 * 8
  #define        PAUSE_LENGTH            500 * 8

-- 
Eric Wieling * BTEL Consulting * 504-210-3699 x2120