2018/12/23 21:37:21.525879 196.221.83.75:5060 -> 196.221.83.78:5060
REGISTER sip:196.221.83.78;transport=udp SIP/2.0
Via: SIP/2.0/UDP 196.221.83.75;rport;branch=z9hG4bKmUpH2c50aU38K
Max-Forwards: 70
From: <sip:astppbilling@196.221.83.78>;tag=6HrvSS5Ncp6Qj
To: <sip:astppbilling@196.221.83.78>
Call-ID: ede4303e-06fa-11e9-af5c-095f8ac56565
CSeq: 132464456 REGISTER
Contact: <sip:gw+dsip-gateway@196.221.83.75:5060;transport=udp;gw=dsip-gateway>
Expires: 300
User-Agent: ASTPP
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, NOTIFY, PUBLISH, SUBSCRIBE
Supported: path, replaces
Content-Length: 0

----------------------------------------------------------------------------------------------

2018/12/23 21:37:21.526550 196.221.83.78:5060 -> 196.221.83.75:5060
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 196.221.83.75;rport=5060;branch=z9hG4bKmUpH2c50aU38K;received=196.221.83.75
From: <sip:astppbilling@196.221.83.78>;tag=6HrvSS5Ncp6Qj
To: <sip:astppbilling@196.221.83.78>;tag=c3e87901289abf65c41eaa82d1354209.6963
Call-ID: ede4303e-06fa-11e9-af5c-095f8ac56565
CSeq: 132464456 REGISTER
WWW-Authenticate: Digest realm="196.221.83.78", nonce="XCABPVwgABHJherd8HUsiHIeLfInG4nZ"
Server: kamailio (5.1.6 (x86_64/linux))
Content-Length: 0


---------------------------------------------------------------------------------------------