Issue with Asterisk and BT ISDN 30 (Full ETSI)

Discussion in 'UK VOIP' started by Mark Simcock, Oct 5, 2007.

  1. Mark Simcock

    Mark Simcock Guest

    Just recently BT have started installing ISDN 30 with a new standard that
    drops the inital 0.

    This creates a problem for us and the CLIP presented to the user can't be
    dialed.

    An example would be : -
    1923123456

    It does the same thing with international numbers but this time you get the
    country code but no 00

    I did find an example to add charators to the incoming cli but that won't
    differentiate between national (which are missing 0 and international which
    are missing 00)

    How can this issue be worked arround and the number be presented in a
    dialable format.

    Thanks in advance,

    Mark Simcock
    Mark Simcock, Oct 5, 2007
    #1
    1. Advertising

  2. Mark Simcock

    alexd Guest

    Mark Simcock wrote:

    > Just recently BT have started installing ISDN 30 with a new standard that
    > drops the inital 0.
    >
    > This creates a problem for us and the CLIP presented to the user can't be
    > dialed.


    How recent is this? A system I installed over a year ago did exactly this.

    > An example would be : -
    > 1923123456


    In zapata.conf:

    nationalprefix=0
    internationalprefix=00

    [actually I set mine to 90 and 900 to make redial easier]

    http://www.voip-info.org/wiki-Asterisk config zapata.conf contains some
    pointers, but you actually have to know the name of the parameter in order
    to find the information on that page, which is annoying!

    --
    <http://ale.cx/> (AIM:troffasky) ()
    14:33:38 up 4 days, 16:21, 2 users, load average: 0.12, 0.23, 0.16
    09 f9 11 02 9d 74 e3 5b d8 41 56 c5 63 56 88 c0
    alexd, Oct 5, 2007
    #2
    1. Advertising

  3. Mark Simcock

    Mark Simcock Guest

    "alexd" <> wrote in message
    news:...
    > Mark Simcock wrote:
    >
    >> Just recently BT have started installing ISDN 30 with a new standard that
    >> drops the inital 0.
    >>
    >> This creates a problem for us and the CLIP presented to the user can't be
    >> dialed.

    >
    > How recent is this? A system I installed over a year ago did exactly this.
    >
    >> An example would be : -
    >> 1923123456

    >
    > In zapata.conf:
    >
    > nationalprefix=0
    > internationalprefix=00
    >
    > [actually I set mine to 90 and 900 to make redial easier]
    >
    > http://www.voip-info.org/wiki-Asterisk config zapata.conf contains some
    > pointers, but you actually have to know the name of the parameter in order
    > to find the information on that page, which is annoying!


    Thanks for that!

    I've tried putting it in, it's not working but thats probally because I'm
    missing some other perameters needed to get it to work. Can you either post
    a working zapata.conf here or e-mail?

    Mark Simcock, Oct 5, 2007
    #3
  4. Mark Simcock

    alexd Guest

    Mark Simcock wrote:

    > I've tried putting it in, it's not working but thats probally because I'm
    > missing some other perameters needed to get it to work. Can you either
    > post a working zapata.conf here or e-mail?


    http://www.trixbox.org/forums/trixbox-forums/help/add-prefix-inbound-callerid-pri

    That's where I got mine from originally.

    --
    <http://ale.cx/> (AIM:troffasky) ()
    17:06:59 up 4 days, 18:54, 2 users, load average: 0.24, 0.25, 0.26
    09 f9 11 02 9d 74 e3 5b d8 41 56 c5 63 56 88 c0
    alexd, Oct 5, 2007
    #4
  5. Mark Simcock

    Bob Geddes Guest

    In article <>, Mark Simcock
    <> writes
    >Just recently BT have started installing ISDN 30 with a new standard that
    >drops the inital 0.
    >
    >This creates a problem for us and the CLIP presented to the user can't be
    >dialed.
    >
    >An example would be : -
    >1923123456
    >
    >It does the same thing with international numbers but this time you get the
    >country code but no 00
    >
    >I did find an example to add charators to the incoming cli but that won't
    >differentiate between national (which are missing 0 and international which
    >are missing 00)
    >
    >How can this issue be worked arround and the number be presented in a
    >dialable format.
    >
    >Thanks in advance,
    >
    >Mark Simcock
    >
    >

    BT don't send the initial 0 on ISDN. They send a flag for national
    number, or international number, or unknown number, followed by the
    number. You have to replace that flag by a 0 or 00 as appropriate.
    --
    Bob Geddes
    Bob Geddes, Oct 6, 2007
    #5
  6. Mark Simcock

    Desk Rabbit Guest

    Mark Simcock wrote:
    > "alexd" <> wrote in message
    > news:...
    >> Mark Simcock wrote:
    >>
    >>> Just recently BT have started installing ISDN 30 with a new standard that
    >>> drops the inital 0.
    >>>
    >>> This creates a problem for us and the CLIP presented to the user can't be
    >>> dialed.

    >> How recent is this? A system I installed over a year ago did exactly this.
    >>
    >>> An example would be : -
    >>> 1923123456

    >> In zapata.conf:
    >>
    >> nationalprefix=0
    >> internationalprefix=00
    >>
    >> [actually I set mine to 90 and 900 to make redial easier]
    >>
    >> http://www.voip-info.org/wiki-Asterisk config zapata.conf contains some
    >> pointers, but you actually have to know the name of the parameter in order
    >> to find the information on that page, which is annoying!

    >
    > Thanks for that!
    >
    > I've tried putting it in, it's not working but thats probally because I'm
    > missing some other perameters needed to get it to work.


    Restart
    Desk Rabbit, Oct 8, 2007
    #6
    1. Advertising

Want to reply to this thread or ask your own question?

It takes just 2 minutes to sign up (and it's free!). Just click the sign up button to choose a username and then you can ask your own questions on the forum.
Similar Threads
  1. BobCov
    Replies:
    3
    Views:
    565
    Andre Beck
    Nov 21, 2003
  2. Replies:
    1
    Views:
    472
    Walter Roberson
    Jan 7, 2004
  3. SkY
    Replies:
    0
    Views:
    927
  4. RH

    ISDN CONNECTION TO ASTERISK

    RH, Oct 6, 2005, in forum: UK VOIP
    Replies:
    1
    Views:
    582
    John Daragon
    Oct 7, 2005
  5. sync
    Replies:
    0
    Views:
    542
Loading...

Share This Page