[Asterisk-Dev] Bug with toll free between 2 asterisk servers(special toll free signaling?)

[John Lange]

Turns out this was correct.

CallerID must be set to something valid (a number in a standard area
code) or the toll free system rejects it.

This is a real problem for people who have their callerid set to a toll
free number.

Thanks though to both Joseph and Enzo for pointing me in the right
direction.

John

On Sat, 2005-09-24 at 08:12 +0800, Enzo Michelangeli wrote:
> ----- Original Message ----- 
> From: "John Lange" <john.lange at open-it.ca>
> To: "Asterisk Developers Mailing List" <asterisk-dev at lists.digium.com>
> Sent: Saturday, September 24, 2005 12:11 AM
> Subject: Re: [Asterisk-Dev] Bug with toll free between 2 asterisk
> servers(special toll free signaling?)
> 
> [...]
> > I also don't think the toll-free system relies on caller id otherwise it
> > would be trivial to spoof (not that it would save you any money since
> > the call is free anyhow).
> 
> In my experience, it does. For a while I could not terminate calls to US
> 800 numbers routed through ENUM resolution with e164.org (they are sent to
> sip:1800 at tf.voipmich.com, which returned to me a SIP response 500
> "Internal Server Error"). After reporting the issue to e164.org's support,
> I got back a reply saying that I needed to provide a valid US caller ID.
> The problem anyway went away: perhaps tf.voipmich.com now fills in a
> spoofed caller ID if it doesn't receive a valid one from the SIP caller.
> 
> Enzo
> 
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