asterisk users - Nov 2004 - Passing callerID info to a forwarded line

Hi everyone,

I have a question regarding the use of callerID and call 
forwarding.  When I forward any of my Zap extensions in 
the office to an outside line, such as a cell phone, the 
callerID info shows up as originating from that office 
phone, rather than from whoever actually originated the 
call into that office phone.  Does anyone have an idea of 
how to pass the callerID info of the originating caller to 
the forwarded phone?


Thanks,

Chris

On Thu, 4 Nov 2004, Chris Goodwin wrote:
> I have a question regarding the use of callerID and call forwarding. 
> When I forward any of my Zap extensions in the office to an outside 
> line, such as a cell phone, the callerID info shows up as originating 
> from that office phone, rather than from whoever actually originated the 
> call into that office phone. Does anyone have an idea of how to pass the 
> callerID info of the originating caller to the forwarded phone?
Area you using a PRI line, or what?

If a PRI, you need your provider to allow you to set the outgoing CallerID 
to whatever you'd like, instead of just one of your own numbers.

If BRI, Analog, etc, I don't think there is a way to set your own 
CallerID.

------------------------------------------------------------------------
| nate carlson | natecars@natecarlson.com | http://www.natecarlson.com |
|       depriving some poor village of its idiot since 1981            |
------------------------------------------------------------------------

On Nov 4, 2004, at 10:28 AM, Chris Goodwin wrote:
> Hi everyone,
>
> I have a question regarding the use of callerID and call forwarding.  
> When I forward any of my Zap extensions in the office to an outside 
> line, such as a cell phone, the callerID info shows up as originating 
> from that office phone, rather than from whoever actually originated 
> the call into that office phone.  Does anyone have an idea of how to 
> pass the callerID info of the originating caller to the forwarded 
> phone?
First, you need a connection to the PSTN that lets you set your own 
caller ID value.  POTS lines never have this.  PRIs may, depending on 
the configuration.  Some VoIP providers let you control the caller ID 
also; NuFone does, but I'm not sure about others.

Using NuFone, it's really easy--just send the call to them without 
resetting the caller ID value that you received on the incoming call.  
In my dial plan, I created a macro that calls SetCallerID with my own 
phone number if and only if the existing caller ID value is 4 or fewer 
digits long.  Here's an example:

[macro-condsetcid]
   exten => s,1,NoOp
   exten => s,2,GotoIf($[${CALLERIDNUM:0:4} = ${CALLERIDNUM}]?3:4)
   exten => s,3,SetCallerID(4254889999)
   exten => s,4,NoOp

Then, in my outbound dialing context, I just do 'Macro(condsetcid)' 
before doing 'Dial(${NUFONE}/${EXTEN})'.  Works perfectly.  There are a 
couple more examples at 
http://scottstuff.net/scott/archives/cat_asterisk.html


Scott