[asterisk-users] Linksys SPA devices and CID

[Jaap Winius]

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