Technically that is not a big issue, however I will explain it for the sake of discussion. The ^ and $ are "anchors" for the beginning and end of the string. Consider these patterns:

\d (match a single digit)
\d+ (match one or more digits)
^\d+ (match a string that begins with one or more digits)
\d+$ (match a string that ends with one or more digits)
^\d+$ (match a string that contains only one or more digits)

So, the pattern ^(\d+) literally means:
"Match a string that begins with one or more digits and capture those digits into the variable $1."

The only issue with not having a $ at the end of the pattern is that there could be other stuff in the string after the digits. For example, these strings would all match the pattern "^(\d+)":

1x
43abc
12345abcd
998877LA_LA_LA_WHATEVER
18005551212!hoohah

If you added the $ at the end of the pattern then none of the above strings would match.

Hope that makes sense....

-MC

On Tue, Feb 7, 2012 at 11:46 AM, Bote Man <bote_radio@botecomm.com> wrote:
I am an absolute newbie to FS, but from reading about dialplan regular
expressions this morning I would guess that this line:

 <condition field="caller_id_number" expression="^(\d+)">

is missing the required trailing "$" to end the regular expression.

It should be:
 <condition field="caller_id_number" expression="^(\d+)$">

no?

Bote


> -----Original Message-----
> From: freeswitch-users-bounces@lists.freeswitch.org
> [mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of
> George Sapak
> Sent: Tuesday, 07 February, 2012 11:30
> To: FreeSWITCH Users Help
> Subject: Re: [Freeswitch-users] sip_invite_from_params
>
> i already have it setup, my calls go through to the right extensions
> and I have done some rewitting in public.xml file, but I have having
> some wierdness on the handsets with call ID, when the phone rings the
> ID show correctly but when its picked up it shows it with the
> ;national... sting included.
>
> Here is how I have done the routing and rewritte:
>
>
> <extension name="105">
>    <condition expression="public" field="context"/>
>    <condition field="destination_number"
> expression="^403XXXXXXX(.+)$">
>    <action application="transfer" data="105 XML default"/>
>    </condition>
> </extension>
>
> public.xml
> <extension name="set caller id" continue="true">
> <condition field="caller_id_number" expression="^(\d+)">
>  <action application="set" data="caller_id_number=$1"/>
>  <action application="set" data="effective_caller_id_number=$1"/>
> </condition>
> </extension>
>
>
> Thank You,
> George
>
> ----- Original Message -----
> From: "Brian West" <brian@freeswitch.org>
> To: "FreeSWITCH Users Help" <freeswitch-users@lists.freeswitch.org>
> Sent: Tuesday, February 7, 2012 8:43:54 AM
> Subject: Re: [Freeswitch-users] sip_invite_from_params
>
>
> Why? What is your goal? This should be a simple dialplan rewrite
> really.
>
>
> /b
>
>
>
> On Feb 7, 2012, at 9:27 AM, George Sapak wrote:
>
>
> can someone give me an example in use, I have looked at the wiki and
> its pretty unclear, I am trying to remove a string in an invite ->
> ;phone-context=national
>
> INVITE sip:403XXXXXXX;phone-context=national@10.185.16.170;user=phone
> SIP/2.0
> Via: SIP/2.0/UDP
> 10.185.16.169:5060;branch=z9hG4bKght6ecqg4eh7d5sluaj9cl2rr4
> From: "Caller"< sip:403YYYYYYY;phone-
> context=national@10.185.16.169;user=phone;isup-oli=00 >;tag=SDj6q1a01-
> 98964
> To: < sip:403XXXXXXX;phone-context=national@10.185.16.170;user=phone >
> Call-ID: SDj6q1a01-2afa0c6426482b0cfa2885f32878c86c-o0t3g30
> CSeq: 62218 INVITE
> Content-Type: application/sdp
> Contact: < sip:403YYYYYYY;phone-
> context=national@10.185.16.169:5060;transport=udp >
> User-Agent: Nortel SESM 14.0.6.0
> Max-Forwards: 19
> Supported: com.nortelnetworks.firewall,p-3rdpartycontrol,nosec,join,x-
> nortel-sipvc,com.nortelnetworks.im.encryption,r eplaces,100rel,tdialog
> Allow: UPDATE,REFER
> x-nt-corr-id: 871f3514-29e7-1b21-a633-000e0cb7d3a0
> x-nt-location: -1
> Content-Length: 206
> Route: < sip:403XXXXXXX;phone-
> context=national@10.185.16.170:5060;user=phone;lr >
>
>
> Thank You,
> George
>
> --
> Brian West
> FreeSWITCH Solutions, LLC
> Phone: +1 (918) 420-9266
> Fax: +1 (918) 420-9267
> brian@freeswitch.org
> http://www.freeswitch.org
>
> ______________________________________________________________________
> ___
> Professional FreeSWITCH Consulting Services:
> consulting@freeswitch.org
> http://www.freeswitchsolutions.com
>
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> http://www.cudatel.com
>
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>
> ______________________________________________________________________
> ___
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> consulting@freeswitch.org
> http://www.freeswitchsolutions.com
>
> FreeSWITCH-powered IP PBX: The CudaTel Communication Server
> http://www.cudatel.com
>
> Official FreeSWITCH Sites
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>
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_________________________________________________________________________
Professional FreeSWITCH Consulting Services:
consulting@freeswitch.org
http://www.freeswitchsolutions.com

FreeSWITCH-powered IP PBX: The CudaTel Communication Server
http://www.cudatel.com

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http://wiki.freeswitch.org
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