Hi Leandro,

thanks for your answer.

I already have tried those parameters but without any positive result.

The telco technician has tried the line with its machine and it worked...remote telco technicians say they get a leading zero... I'm thinking there is something strange in the middle that adds the zero but do not know what it is. Strange is the fact that you can call some numbers with or without the prefix zero...
Moreover we had no problem with the previous telco (fastweb).

So we can only call PTSN numbers....not mobile phones.

Giorgio

On 11/20/2012 11:12 AM, Leandro Dardini wrote:
2012/11/20 gincantalupo <gincantal...@fgasoftware.com <mailto:gincantal...@fgasoftware.com>>

    Hi all,

    I have problems dialling out because my new telco (the previous
    gave no problems) tells me my PBX adds a leading 0 and that's why
    I cannot dial out (but I can receive calls).

    I make a small extensions.conf as a test:

    exten => 666,1,Dial(DAHDI/g1/339xxxxxx)
    but cannot dial out

    Curious thing is that
    exten => 666,1,Dial(DAHDI/g1/0233xxxxxx)
    and
    exten => 666,1,Dial(DAHDI/g1/233xxxxxx)
    call the same number!!!

    Line in use is a PRI.

    My Asterisk version is 1.4.26.2
    dahdi version: 2.2.0.2
    wanpipe-3.4.6

    I checked with intense pri debug and see no 0 inside frames....

    How can I really be SURE Asterisk is not adding some leading zero?

    Thank you.

    Giorgio.


I have never heard of a way to automatically add digits when using PRI, however can you check your chan_dahdi.conf about the following lines:

internationalprefix =
nationalprefix =
localprefix =

If presents, try messing with them. If you are using the PRI in Italy, every provider has PRI configured in its own way, some time even the same provider is configuring PRI lines in multiple times, but often the problems are on receiving the calls (like calls with and without the area code, with or without the leading zero, etc. etc.)

Leandro


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