1. 2018/12/23 21:37:21.525879 196.221.83.75:5060 -> 196.221.83.78:5060
2. REGISTER sip:196.221.83.78;transport=udp SIP/2.0
3. Via: SIP/2.0/UDP 196.221.83.75;rport;branch=z9hG4bKmUpH2c50aU38K
4. Max-Forwards: 70
5. From: <sip:astppbilling@196.221.83.78>;tag=6HrvSS5Ncp6Qj
6. To: <sip:astppbilling@196.221.83.78>
7. Call-ID: ede4303e-06fa-11e9-af5c-095f8ac56565
8. CSeq: 132464456 REGISTER
9. Contact: <sip:gw+dsip-gateway@196.221.83.75:5060;transport=udp;gw=dsip-gateway>
10. Expires: 300
11. User-Agent: ASTPP
12. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, NOTIFY, PUBLISH, SUBSCRIBE
13. Supported: path, replaces
14. Content-Length: 0
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18. 2018/12/23 21:37:21.526550 196.221.83.78:5060 -> 196.221.83.75:5060
19. SIP/2.0 401 Unauthorized
20. Via: SIP/2.0/UDP 196.221.83.75;rport=5060;branch=z9hG4bKmUpH2c50aU38K;received=196.221.83.75
21. From: <sip:astppbilling@196.221.83.78>;tag=6HrvSS5Ncp6Qj
22. To: <sip:astppbilling@196.221.83.78>;tag=c3e87901289abf65c41eaa82d1354209.6963
23. Call-ID: ede4303e-06fa-11e9-af5c-095f8ac56565
24. CSeq: 132464456 REGISTER
25. WWW-Authenticate: Digest realm="196.221.83.78", nonce="XCABPVwgABHJherd8HUsiHIeLfInG4nZ"
26. Server: kamailio (5.1.6 (x86_64/linux))
27. Content-Length: 0
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