On 29 July 2013 16:55, Kevin Larsen <[email protected]> wrote:
> > > From: Steve Davies <[email protected]> > To: Asterisk Users Mailing List - Non-Commercial Discussion < > [email protected]>, > Date: 07/29/2013 10:53 AM > Subject: [asterisk-users] Connected Line presentation in 1.8.x > upwards > Sent by: [email protected] > ------------------------------ > > > > Hi, > > I've searched the *asterisk.org* <http://asterisk.org/> and voip-info > wiki sites, but not found an answer that seems to match. > > Hopefully this is a simple question. COLP is working very well on our > system - Unfortunately it is working a bit TOO well in some circumstances. > We have some "untrusted" trunks. On these trunks, an initial CallerID can > be used, but any redirected caller numbers, COLP updates etc are not safe > to accept. Sadly I cannot find how to cause COLP updates to be ignored for > a trunk. > > I need solutions for SIP, IAX and DAHDI, what options do I have? This > applies to both in- and out-bound calls. > > Are there some variables that I can set just before dialling an outbound > call, and immediately on receiving an inbound call to determine what the > callerID values will be for the entire duration of the call? (ie. old-style > pre-COLP behaviour for specific trunks) > > Thanks for any pointers. > > Regards, > Steve > > > > I believe what you are looking for in Dial is the 'I' option. > > > Ah. Many thanks. It appears that the normally reliable voip-info wiki is out of date and does not include that option. I should probably have just used Asterisk's built-in documentation anyway :) I guess on an inbound call I will have to conditionally set 'I' on the Dial command based on the originating channel? I will also have to go and check what affect this has when a call is SIP REFER'ed as that might result in an asymmetric requirement. The internal SIP handset will want updating, but the external SIP trunk call will not. Regards, Steve
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