Georg,

If you just want the phone number w/o the international prefix then it's better to capture that correctly the first time:
<condition field="destination_number" expression="^(49)?(123456789)$">
The value you want is now in $2, and if it's international then you'll have "49" in $1. However, you cannot use $1 or  $2 in another condition. You'll need to store them before you do anything else:

<extension name="Dispo Intern" continue="true">
  <condition field="destination_number" expression="^(49)?(123456789)$">
    <action application="set" data="international=$1" inline="true"/>
    <action application="set" data="dialed_number=$2" inline="true"/>
  </condition>

  <condition field="${international}" data="^49$">
    <action application="set" data="effective_caller_id_number=0${dialed_number}"/>
    <action application="set" data="effective_caller_id_name=_undef_"/>
    <anti-action application="set" data="effective_caller_id_number=${dialed_number}"/>
  </condition>

</extension>

Try that. Standard disclaimer applies: I did that off the top of my head, so if it doesn't work the first time please test and tinker a bit before you report back. :)

-MC

On Tue, Sep 18, 2012 at 1:53 PM, <georg@riseup.net> wrote:
Hi all,

My provider is sending me the phone numbers in the E.164 (I guess) format.
I would like to remove the international prefix (on local fixed line and
local mobile calls at least), and add a leading zero. I know how to add
digits, but I've got problems to remove digits.

My dialplan at the moment looks like this:

<extension name="Dispo Intern" continue="true">
 <condition field="destination_number" expression="^(123456789)$">
  <regex field="caller_id_number" expression="^49(\d+)$2"/>
  <action application="set" data="effective_caller_id_number=0$2"/>
  <action application="set" data="effective_caller_id_name=_undef_"/>
  <anti action application="set"
data="effective_caller_id_number=${original_caller_id_number}"/>
 </condition>
</extension>

What I'm trying to do:
- Check if the call is a "local" one
- If yes, alter the caller id
- I thought, I'm able to save the stripped caller id in $2, and use it
again in the next line; this is not true, or at least not in the way I did
this
- It seems that $2 is "empty", because the altered caller id is just 0

Could someone point me into the right direction?

Thanks in advance,
Georg


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