[cisco-voip] Inbound International Caller ID: should it work?

[Jonathan Charles]

Well the question here is more to the issue of whether or not you are
getting CID from telco.

If this is a PRI, take a look at a debug isdn q931 while an international
call is coming in.

If your calling party IE is populated with the international CID, then the
problem lies on the gateway config.

If the IE is not populated, then you need to engage telco to see if they are
sending it (however, if they are not, the problem could lie anywhere between
your ISDN switch and all of the SS7 links between there and the
international site...)

Generally, CID probs are nearly impossible to correct on the telco side. Any
telco involved in the transport of that call can act (or not) on the CID,
and can clear that IE.

I had a customer that was getting inconsistent CID when they made outbound
calls, it turned out that some telcos were clearing the IE... and tracing
every call, throughout every telco is impossible.



Jonathan

On 12/18/06, Robert Kulagowski <bob at smalltime.com> wrote:
>
> Is this one of those "Don't bother trying to change your router configs,
> because it's not going to work" or "If you're not getting international
> caller ID, then you need to check your router config".
>
> H.323 / IOS 12.4.9T / CM 4.1.3sr2
> _______________________________________________
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> cisco-voip at puck.nether.net
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>
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