--- (16 headers 11 lines)---
Using INVITE request as basis request - NTQ0OTg3NTdhMjA1YmJlMjg5NzI5Njk3NzZhMGQxMTc.
Sending to 192.100.10.30 : 5060 (NAT)
Reliably Transmitting (NAT) to 192.100.10.30:5060:
SIP/2.0 407 Proxy Authentication Required
v: SIP/2.0/UDP 192.100.10.30:5060;branch=z9hG4bK-d87543-47b35476baa42f4e-1--d87543-;received=192.100.10.30;rport=5060
f: "private"<sip:20209@192.100.10.30;user=phone>;tag=716b8c47
t: <sip:67207@192.100.10.20;user=phone>;tag=as6da51db5
i: NTQ0OTg3NTdhMjA1YmJlMjg5NzI5Njk3NzZhMGQxMTc.
CSeq: 1 INVITE
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
m: <sip:67207@192.100.10.20>
Proxy-Authenticate: Digest algorithm=MD5, realm="asterisk", nonce="5623517d"
l: 0


---
Scheduling destruction of call 'NTQ0OTg3NTdhMjA1YmJlMjg5NzI5Njk3NzZhMGQxMTc.' in 15000 ms
Found user '20209'
dms*CLI> ~~~~
<-- SIP read from 192.100.10.30:5060:
ACK sip:67207@192.100.10.20;user=phone SIP/2.0
Via: SIP/2.0/UDP 192.100.10.30:5060;branch=z9hG4bK-d87543-47b35476baa42f4e-1--d87543-;rport
To: <sip:67207@192.100.10.20;user=phone>;tag=as6da51db5
From: "private"<sip:20209@192.100.10.30;user=phone>;tag=716b8c47
Call-ID: NTQ0OTg3NTdhMjA1YmJlMjg5NzI5Njk3NzZhMGQxMTc.
CSeq: 1 ACK
Content-Length: 0