Can't get caller id

Question

Good morning,

When someone calls me, I can't get his caller id (his telephone number).

The information I get is:

• Incoming call from:
  
• telefonica.net
  
• myphonenumber@telefonica.net
  

Thanks for your help!

Best regards,

Answer 1

The thing is that telefonica.net sends the caller-ID in the P-Asserted-Identity header like:

P-Asserted-Identity:<sip:+34NNNNNNNNN@telefonica.net;user=phone>

but de from header sent by telefonica is like:

From: <sip:telefonica.net>  (no number in this header)

Zoiper (at least the free Zoiper Classic version) doesn't seem to handle the P-Asserted-Identity header even though the caller-ID there is more reliable tham the info in the from header.

I would encourage developers of Zoiper to handle the P-Asserted-Identity header to extract the caller-ID from that field.

Answer 2

Hello,

Zoiper is showing what the server sent it. Please report the issue to telefonica