Host                                    dnsmgr Username       Refresh State                Reg.Time
10.10.15.1:5060                        N      8777777777         120 Request Sent
1 SIP registrations.
REGISTER 11 headers, 0 lines
Reliably Transmitting (no NAT) to 10.10.15.1:5060:
REGISTER sip:10.10.15.1 SIP/2.0
Via: SIP/2.0/UDP 10.10.15.1:5060;branch=z9hG4bK4bdfb74c
Max-Forwards: 70
From: <sip:8777777777@10.10.15.1>;tag=as2f014c66
To: <sip:8777777777@10.10.15.1>
Call-ID: [email protected]
CSeq: 104 REGISTER
Supported: replaces, timer
User-Agent: FPBX-15.0.16.49(16.6.2)
Expires: 120
Contact: <sip:8777777777@10.10.15.1:5060>
Content-Length: 0


---
[2020-05-19 09:22:49] ERROR[12350]: chan_sip.c:4321 __sip_reliable_xmit: Serious Network Trouble; __sip_xmit returns error for pkt data
[2020-05-19 09:22:49] NOTICE[12350]: chan_sip.c:15982 sip_reg_timeout:    -- Registration for '[email protected]' timed out, trying again (Attempt #3)
Really destroying SIP dialog '[email protected]' Method: REGISTER