Block inbound call on the P-Asserted-Identity
I normally use the fraud potection feature in the SBC and block calls on the number displayed in the From Field,
Is it possible to use fraud protection and the User-Agent-Haeder to block on the P-Asserted-Identity.
Below is an example (real numbers have been replaced)
018-10-10 11:16:04.062
INVITE sip:+4420711112222@1.1.1.1:5060 SIP/2.0
Via: SIP/2.0/UDP 172.30.125.30:5060;branch=z9hG4bK02B6fde42011516c49e
From: "Anonymous" <sip:Anonymous@Anonymous.invalid>;tag=gK0263ada0
To: <sip:+4420711112222@2.2.2.2>
Call-ID: 637704159_78091402@172.30.125.30
CSeq: 4281 INVITE
Max-Forwards: 68
Allow: INVITE,ACK,CANCEL,BYE,REGISTER,REFER,INFO,SUBSCRIBE,NOTIFY,PRACK,UPDATE,OPTIONS
Accept: application/sdp, application/isup, application/dtmf, application/dtmf-relay, multipart/mixed