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Cisco Bug: CSCsy75002 - dialed digits not played if connected device interrupts dial delay timer

Last Modified

Jan 28, 2017

Products (1)

  • Cisco VG Series Gateways

Known Affected Releases

12.4(15)T8 12.4(24.6)T3 12.4(9)T7

Description (partial)

Symptom:
An FXS port on an IOS gateway will not play out dial-digits if the dial delay timer is interrupted. This refers specifically to digits forwarded out an FXS port via the dial-peer with a configuration such as:

dial-peer voice 1 pots
 destination-pattern 8675309
 no digit-strip
 port 2/0
!

In the above example, 8675309 will be played out the FXS port as DTMF digits when the connected device answers an incoming call. The digits are played out after a 500ms timer (300ms if battery-reversal is disabled). If anything interrupts this timer (an offhook / onhook / offhook transition for example) the digits will not be played out.

Conditions:
This was seen with a customer who had a "MultiTech Faxfinder" connected to the FXS ports of a VG224.
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