asterisk users - Nov 2005 - Problem about outgoing calls with verizon.

Hi, everyone,

I have met a very strange problem. We use a Asterisk PBX connected with two
rollover PSTN phone line provided by Verizon by Digium TDM cards. The
incoming calls are always OK. But when I make outgoing calls, sometimes it
works, sometimes it just get a busy tone, doesn't work at all. The strange
thing is that when I use the same server with SBC lines perviously, it
worked fine.

What is the problem here? This drives me crazy.

Thanks

/frank
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://lists.digium.com/pipermail/asterisk-users/attachments/20051125/bf4f0a7d/attachment.htm

Add a w (wait) to your dialstring.  Chances are asterisk is dialing
before you are getting dialtone.  You can put a butt set on the line and
listen while dialing out to verify this before adding the w.  Sometimes
it may take ww to get it working correctly.

 

Thanks,

Steve 

 

  _____  

From: Zheng Fang [mailto:fangzheng1980@gmail.com] 
Sent: Friday, November 25, 2005 9:45 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [Asterisk-Users] Problem about outgoing calls with verizon.

 

Hi, everyone,

 

I have met a very strange problem. We use a Asterisk PBX connected with
two rollover PSTN phone line provided by Verizon by Digium TDM cards.
The incoming calls are always OK. But when I make outgoing calls,
sometimes it works, sometimes it just get a busy tone, doesn't work at
all. The strange thing is that when I use the same server with SBC lines
perviously, it worked fine. 

 

What is the problem here? This drives me crazy.

 

Thanks

 

/frank

> I have met a very strange problem. We use a Asterisk PBX connected with two
rollover
PSTN phone line
> provided by Verizon by Digium TDM cards. The incoming calls are always OK.
But when I
make outgoing calls,
> sometimes it works, sometimes it just get a busy tone, doesn't work at
all. The
strange thing is that when I use the
> same server with SBC lines perviously, it worked fine.
>  
> What is the problem here? This drives me crazy.
Asterisk is dialing the number before the central office is ready to
accept it. Just add a "w" in the dial string like this:
 exten => _9XXXXXXX,1,Dial(Zap/4/w${EXTEN}) 
Each "w" is worth about a 1/4 to 1/2 second delay. If one doesn't
fix
the problem, try two or three.