[VoiceOps] Caller-ID: SIP From vs. P-Asserted-Identity

[Paul Timmins]

Better question, why is the carrier letting you specify the billing telephone number? Isn't that a massive security flaw? Or is this an additional layer of accounting?

On Jul 23, 2012, at 22:38 , Ryan Delgrosso wrote:

> I have to agree with Alex on this one.
> 
> PAI
> RPID
> From
> 
> Only one matters and they are weighted in that order.
> 
> If you need the billing number to be different than the highest applicable in the above list, insert a diversion header and be done with it (warning not all term carriers properly obey diversion headers but it is the most correct answer)
> 
> 
> On 07/23/2012 02:45 PM, Jay Hennigan wrote:
>> On 7/23/12 2:34 PM, Eric Wieling wrote:
>>> Set a Diversion: header to specify the CallerID number.
>>> 
>>> Example:
>>>     Diversion: <sip:+12125551212 at 172.17.5.11>;reason=rcf
>>> 
>>> The ;reason=whatever is optional, I don't know of any carriers which use it.
>> That would likely work, but it is easier said than done.  Sometimes it
>> isn't diverted.  An agent in a pool wants to display the pool inbound
>> number in CLID but keep the individual number for billing and CDRs.  Or
>> the IAD on site doesn't support diversion headers, etc.
>> 
>> --
>> Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
>> Impulse Internet Service  -  http://www.impulse.net/
>> Your local telephone and internet company - 805 884-6323 - WB6RDV
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