Вот такое валится
номер на который пришёл звонок вижу только в поле from
<--- SIP read from UDP:37.139.38.16:5060 --->
INVITE sip:100980-101@server:5060 SIP/2.0
Record-Route: <sip:37.139.38.16;lr=on;nat=yes>
Via: SIP/2.0/UDP 37.139.38.16;branch=z9hhw5K7cb5.cde7d8f9a870a9cggb689c3c1b74s452.0
Via: SIP/2.0/UDP 185.45.152.186:5060;rport=5060;branch=z3hh4bK7264d4hd
Max-Forwards: 69
From: "7800XXXXXXX" <sip:+7911XXXXXXX@pbx.zadarma.com>;tag=as7da4f90c
To: <sip:120181-101@37.139.38.16>
Contact: <sip:+7911XXXXXXX@185.45.152.186:5060>
Call-ID: 2ccd236e2628670a7921059721579d78@185.45.152.186:5060
CSeq: 102 INVITE
User-Agent: Zadarma PBXv2
Date: Thu, 12 Oct 2017 15:02:36 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces
Content-Type: application/sdp
Content-Length: 412