I have an ASUS AX-112W Voip box behind a router, connected to a regular phone. After hours fighting with the router and the voip box, I finally found a configuration where everything works almost perfectly.
Except for the caller ID that simply does not works.
I have tried this with a crappy Siemens Gigaset C1 phone and with a brand new Philips CD560 phone. Depending on the type of CallerID I choose on the AX112W configuration I see EXTERNAL CALLER, NOT AVAILABLE or UNKOWN NUMBER when someone calls. If I connect the phone directly to the line, everything works.
The caller ID information is being lost inside the AX112W. Is this something related to the router? Some port being blocked? The router is a D-Link DSL-524T. My SIP provider is voipfone.co.uk.
What ports should I forward in the router and/or Asus box? Any other things I should check?
AX112W has this options for CallerID
- ETSI FSK during ring
- ETSI FSK before ring
- ETSI FSK no ring
- ETSI DTMF during ring
- ETSI DTMF before ring
- ETSI DTMF no ring
I live in Portugal and I am not sure what system of CallerID is used here, but I have tried all these options of the AX112W without success. I had another SIP box before this, a Zoom X5V that worked perfectly.
The following pictures show the configurations I have here on the SIP section of AX112W
The Zoom x5v I had before this AX112W worked perfectly, not only showing the caller ID from calls originated on VOIP but also from call originated on POTS.