[Asterisk-Users] Definitive CallerID Format and anonymous?

[Jay Milk]

Thanks for the thorough reply.

I'm aware that there necessarily are inconsistencies between termination
providers; I was just curious to find out if there's some form of
standard one should follow, which may either result in more consistent
behavior, or at least shift culpability to the provider...

Bottom line is that I want to tell my IAX providers "Hey, I'm doing the
right thing, could you find out where it's breaking?"

> -----Original Message-----
> From: Rich Adamson [mailto:radamson at routers.com] 
> Sent: Friday, July 08, 2005 8:12 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] Definitive CallerID Format and 
> anonymous?
> 
> 
> > I use various IAX providers to terminate my outbound calls. 
>  I set the 
> > caller-ID to one of several DIDs, based on the called 
> number.  There 
> > doesn't seem to be any rhyme or reason as to what the called user 
> > sees, however.
> > 
> > Calls to most cell-phones show *exactly* the number I 
> submit. Calls to 
> > land-lines sometimes show, other times not. Calls to other 
> > voip-providers most often show, but sometimes don't.
> > 
> > I'm currently only setting CID as a ten-digit number.  Has 
> anyone on 
> > this list tested caller-id delivery with various services?  Is there
> > *one* usable format (i.e. 1+10, or "+1"+10), or does it vary from 
> > provider to provider?
> > 
> > Secondly, I've been having a difficult time hiding my CID 
> information 
> > from callees.  Not setting it will sometimes deliver the 
> extension ID 
> > (logically); setting it to a blank string will sometimes deliver 
> > random, even invalid numbers.  My best bet so far has been 
> to simply 
> > set it to 0000000000.  Better options?
> 
> You're seeing about the same results that the rest of us have seen.
> 
> A fair number of the iax providers contract with other bulk 
> providers to terminate calls. Some bulk providers accept 
> calleridnum while others 
> don't. Highly likely the only way to get answers to this is from your 
> iax providers assuming they will even tell you who they use for 
> termination. Even if they would tell you, I'd bet at least 
> some money their bulk providers aren't consistent across all 
> nodes they support.
> 
> As maybe a poor example, some bulk providers may have pstn 
> interfaces into low volume locations that are based on 
> two-wire analog equipment (eg, fxo channel bank, h.323 boxes) 
> where the analog interface won't accept calleridnum.
> 
> If you read through the livevoip.com bankruptcy filing, it 
> would appear they had some sort of relationship with Netixs, 
> Broadvox, Telesthetics, and Voice Conduits. Some if not all 
> apparently provided termination services to livevoip. How 
> would the folks at livevoip even know which physical pstn 
> interfaces did or did not support calleridnum when completing 
> a call? (The only probably way would likely involve asking 
> you for the dialed number, trace that number through whatever 
> logic livevoip used for switching that iax call, contacting 
> that provider, tracing the call through their facilities 
> until the pstn interface was located, and then (and only 
> then) answering the question whether calleridnum is 
> supported. Not likely most itsp's would go that far since its 
> a time consuming effort.)
> 
> Bottom line... I don't think you'll find any real answers or 
> consistency where calleridnum will or won't work. 
> 
> The same answer applies to hiding CID info. I have seen where 
> some telemarketing companies send their calleridnum as 
> 999-999-9999 in the
> US. I would doubt that sending "    " (spaces) would work.
> 
> Pure guess is the smaller the itsp, the more likely you might 
> get consistent calleridnum support, primarily because the 
> smaller itsp's will likely have a limited number of pstn call 
> completion interfaces.
> 
> Rich
> 
> 
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