[Asterisk-Users] sometimes CIDNUM shows, sometimes CIDNAME??? Why, why, why, why?

[Shaun Ewing]

On 9/19/05, Goran Dj. <pisac at hotpop.com> wrote:
> Why Asterisk showing (on SCCP and H323 phones) different CID related to
> type of Incoming channel:
> If incoming channel is SIP, on phone is displayed CALLERIDNUM
> If incoming channel is ZAP, on phone is displayes CALLERIDNAME
> 
> It vas very frustrating! I lost couple hours of my time to find that my
> dialplan is not faulty, but asterisk is!

Have you considered the possibility that your SIP provider may not be
sending you the caller id name?

CNAM looksup do cost money, and it's probably the exception rather
than the norm to find a VoIP provider that will deliver it.