asterisk users - Mar 2008 - Linksys SPA devices and CID

Hi list,

After successfully configuring Linksys SPA3000 and SPA3102 devices as  
Asterisk PSTN gateways, the only thing I can't get working is the PSTN  
Caller ID. The analog and SIP phones I've used can both display CIDs  
for internal calls, while the analog model also displays CIDs  
correctly when attached directly to the PSTN line. However, when PSTN  
calls come in via the SPA device, all I see is the SPA device CID  
associated with the PSTN line; not the CID of the incoming call.

The only SPA settings I know of that are supposed to enable the  
passing on of PSTN CIDs are the "PSTN CID For VoIP CID" option (under
PSTN Line), which AFAIK must be set to "yes," and the "Caller ID
Method" (under Regional), which I must set to "ETSI DTMI With
PR", or
else my analog phone will not display any CIDs when attached to the  
SPA's FXS port. Yet, these settings have never led to any positive  
results, despite attempts with different firmware versions on both  
devices.

Can anyone help?

Thanks,

Jaap

Quoting Jaap Winius <jwinius at umrk.to>:
> Hi list,
>
> After successfully configuring Linksys SPA3000 and SPA3102 devices as
> Asterisk PSTN gateways, the only thing I can't get working is the PSTN
> Caller ID. The analog and SIP phones I've used can both display CIDs
> for internal calls, while the analog model also displays CIDs
> correctly when attached directly to the PSTN line. However, when PSTN
> calls come in via the SPA device, all I see is the SPA device CID
> associated with the PSTN line; not the CID of the incoming call.
>
> The only SPA settings I know of that are supposed to enable the
> passing on of PSTN CIDs are the "PSTN CID For VoIP CID" option
(under
> PSTN Line), which AFAIK must be set to "yes," and the
"Caller ID
> Method" (under Regional), which I must set to "ETSI DTMI With
PR", or
> else my analog phone will not display any CIDs when attached to the
> SPA's FXS port. Yet, these settings have never led to any positive
> results, despite attempts with different firmware versions on both
> devices.
>
> Can anyone help?
>
> Thanks,
>
> Jaap
Your caller ID is probably being over-ridden by the settings in your  
sip.conf file. Remove the caller ID from your PSTN section of the  
sip.conf, and the CID should be passed on from the POTS line.

Tim Johnson