[Asterisk-Users] Outbound dialing issue with FXO

[Johnathan Corgan]

Mike Clark wrote:

> We are installing a number of systems with 2 TDM04B cards. Have done all 
> the isolation to unique IRQs, etc. All inbound calls seem to work fine. 
> However, outbound calls are hit or miss. Sometimes they work fine and 
> other times we get a "you must first dial a 1 or 0" message back from 
> telco when dialing out standard POTS lines.
> 
> We are running AAH 1.0 which is Asterisk 1.0.7. Six Polycom phones are 
> on the system. Any ideas on this one?

Just a shot in the dark...I was getting this same thing with a TDM11B 
card.  Turns out I needed to add a pause before dialing on the FXO port; 
the first digit was getting lost randomly.  Adding a 'w' before the 
extension expression in the Dial command fixed it entirely.

-Johnathan