[2016-07-29 14:41:16] VERBOSE[9009] res_pjsip_logger.c: <--- Received SIP request (1022 bytes) from UDP:109.60.xxx.xxx:5060 --->
INVITE sip:01010@talk37.ru;user=phone SIP/2.0
Via: SIP/2.0/UDP 109.60.xxx.xxx:5060;branch=z9hG4bK8d780e15d61aca6dbf062753a99f758;rport
From: "username" <sip:username@talk37.ru>;tag=573185095
To: <sip:01010@talk37.ru;user=phone>
Call-ID: 415499178@192_168_1_15
CSeq: 3 INVITE
Contact: <sip:username@109.60.xxx.xxx:5060>
Authorization: Digest username="username", realm="ruvoip.net", qop=auth, algorithm=md5, uri="sip:01010@talk37.ru;user=phone", nonce="1469792476/8cee38f508d54ce00290f6621fd6eaf1", nc=00000001, cnonce="
2bc3ad53d3cffd6c6685d409454fb26b", opaque="30ee86721fb3faeb", response="xxxxxxxxxxxxxx47a19f834e102xxxxx"
Max-Forwards: 70
User-Agent: C470 IP/022270000000
Supported: replaces
Allow-Events: message-summary, refer, talk
Allow: INVITE, ACK, CANCEL, BYE, OPTIONS, INFO, REFER, SUBSCRIBE, NOTIFY
Content-Type: application/sdp
Content-Length: 156

v=0
o=- 5010 9 IN IP4 109.60.xxx.xxx
s=Mapping
c=IN IP4 109.60.xxx.xxx
t=0 0
m=audio 5010 RTP/AVP 8 0 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000

[2016-07-29 14:41:16] VERBOSE[17847] res_pjsip_logger.c: <--- Transmitting SIP response (412 bytes) to UDP:109.60.xxx.xxx:5060 --->
SIP/2.0 400 Bad Request
Via: SIP/2.0/UDP 109.60.xxx.xxx:5060;rport=5060;received=109.60.xxx.xxx;branch=z9hG4bK8d780e15d61aca6dbf062753a99f758
Call-ID: 415499178@192_168_1_15
From: "username" <sip:username@talk37.ru>;tag=573185095
To: <sip:01010@talk37.ru;user=phone>;tag=z9hG4bK8d780e15d61aca6dbf062753a99f758
CSeq: 3 INVITE
Warning: 399 SIP "Unknown error 220030"
Server: ruVoIP.net PBX
Content-Length:  0