Discussion List for Freenum/ITAD Subscriber Number (ISN) Project

[John Todd <>]

On Dec 5, 2008, at 5:56 AM, Maxim Samo wrote:

> Hi,
>
> I recently joined the ISN trial and like the idea. I hope it takes  
> off.
> 2 things I noticed:
>
> 1. suggested caller-id is the sip URI. I noticed though that some
> destinations - particularly freeworlddialup - think that this would  
> be a
> malformed URI and hence I reverted to using old-school phone number
> (enum searchable).

I would suggest that's a major failing of FWD if they think that a SIP  
URI is malformed as the From: or Reply-To: header.  The URI in the  
From: header doesn't necessarily have anything to do with the ISN  
sequence (though it could be an ISN in SIP format, such as sip:1234*) 
 but should be the standard SIP URI for a return path.  If FWD  
doesn't understand SIP URIs that are non-E.164, I would suggest that  
this is not a failing of the recommendations for ISN dialing behavior  
but is in fact a serious and fundamental flaw in their parsing engine.

> 2. The asterisk snipets in the cookbook needed some tweaking to get
> working with 1.6.x. Here's what I use:
>
> [isn]
> exten => _X.,1,Set(CALLERID(num)=12125551212)
> exten => _X.,n,Set(CALLERID(name)="name here")
> exten => _X.,n,Set(TIMEOUT(absolute)=10800)
> exten => _X.,n,Set(isnresult=${ENUMLOOKUP(${EXTEN},sip,, 
> 1,freenum.org)})
> exten => _X.,n,NoOp(${isnresult})
> exten => _X.,n,GotoIf($["${isnresult}" = ""]?end:dial)
> exten => _X.,n(dial),Dial(SIP/${isnresult},100)
> exten => _X.,n(end),Congestion
>
>
> regards,
>
> Maxim Samo

OK, thanks!   I should really start editing that document again to  
clean it up.

JT