*****Called each phone's extension successfully several times.*****
*CLI> sip show peers
Name/username Host Dyn Nat ACL Mask Port Status
23/23 192.168.0.23 D 255.255.255.255 5060 OK (40 ms)
22/poly 192.168.0.22 D 255.255.255.255 5060 OK (76 ms)
1/1 192.168.0.21 D 255.255.255.255 5060 OK (4 ms)
3 sip peers [3 online , 0 offline]
-- Executing Dial("SIP/22-78b5", "Zap/1/18002963149") in new stack
-- Called 1/18002963149
-- Zap/1-1 answered SIP/22-78b5
-- Started music on hold, class 'default', on Zap/1-1
-- Executing Dial("SIP/22-289e", "SIP/23|20|Tt") in new stack
-- Called 23
*****Tried to transfer*****
Nov 4 14:18:14 NOTICE[9714]: chan_sip.c:1614 auto_congest: Auto-congesting SIP/23-529c
-- SIP/23-529c is circuit-busy
== Everyone is busy/congested at this time (1:0/1/0)
-- Executing Hangup("SIP/22-289e", "") in new stack
== Spawn extension (local-access, 23, 2) exited non-zero on 'SIP/22-289e'
Nov 4 14:18:16 WARNING[9714]: chan_sip.c:886 retrans_pkt: Maximum retries exceeded on call 4f26f559233ffb347dd6146310abd75f@192.168.0.10 for seqno 102 (Critical Request)
Nov 4 14:18:20 WARNING[9714]: chan_sip.c:886 retrans_pkt: Maximum retries exceeded on call 4f26f559233ffb347dd6146310abd75f@192.168.0.10 for seqno 102 (Non-critical Request)
Nov 4 14:18:42 NOTICE[9714]: chan_sip.c:9628 sip_poke_noanswer: Peer '23' is now UNREACHABLE! Last qualify: 40
Nov 4 14:19:04 NOTICE[9714]: chan_sip.c:8103 handle_response: Peer '23' is now REACHABLE! (41ms / 1000ms)
-- Stopped music on hold on Zap/1-1
-- Hungup 'Zap/1-1'
== Spawn extension (local-access, 18002963149, 1) exited non-zero on 'SIP/22-78b5'
sip show peers
Name/username Host Dyn Nat ACL Mask Port Status
23/23 192.168.0.23 D 255.255.255.255 5060 OK (41 ms)
22/poly 192.168.0.22 D 255.255.255.255 5060 OK (80 ms)
1/1 192.168.0.21 D 255.255.255.255 5060 OK (5 ms)
3 sip peers [3 online , 0 offline]
*****Picked up line 22(Polycom) called line 23(Zyxel)*****
-- Executing Dial("SIP/22-3e55", "SIP/23|20|Tt") in new stack
-- Called 23
Nov 4 14:19:43 NOTICE[9714]: chan_sip.c:1614 auto_congest: Auto-congesting SIP/23-3fab
-- SIP/23-3fab is circuit-busy
== Everyone is busy/congested at this time (1:0/1/0)
-- Executing Hangup("SIP/22-3e55", "") in new stack
== Spawn extension (local-access, 23, 2) exited non-zero on 'SIP/22-3e55'
Nov 4 14:19:45 WARNING[9714]: chan_sip.c:886 retrans_pkt: Maximum retries exceeded on call 2d856de944b342cc076292de7b21bb1a@192.168.0.10 for seqno 102 (Critical Request)
-- Executing Dial("SIP/23-c919", "SIP/22|20|Tt") in new stack
-- Called 22
-- SIP/22-c314 is ringing
== Spawn extension (local-access, 22, 1) exited non-zero on 'SIP/23-c919'
-- Executing Dial("SIP/23-0c38", "SIP/22|20|Tt") in new stack
-- Called 22
-- SIP/22-9ffd is ringing
== Spawn extension (local-access, 22, 1) exited non-zero on 'SIP/23-0c38'
-- Executing Dial("SIP/22-77d7", "SIP/23|20|Tt") in new stack
-- Called 23
-- SIP/23-f36a is ringing
-- Got SIP response 486 "Busy" back from 192.168.0.23
-- SIP/23-f36a is busy
== Everyone is busy/congested at this time (1:1/0/0)
-- Executing Hangup("SIP/22-77d7", "") in new stack
== Spawn extension (local-access, 23, 2) exited non-zero on 'SIP/22-77d7'
-- Executing Dial("SIP/22-762b", "SIP/23|20|Tt") in new stack
-- Called 23
-- SIP/23-372c is ringing
== Spawn extension (local-access, 23, 1) exited non-zero on 'SIP/22-762b'
Nov 4 14:22:08 NOTICE[9714]: chan_sip.c:9628 sip_poke_noanswer: Peer '23' is now UNREACHABLE! Last qualify: 38
sip show peers
Name/username Host Dyn Nat ACL Mask Port Status
23/23 192.168.0.23 D 255.255.255.255 5060 UNREACHABLE
22/poly 192.168.0.22 D 255.255.255.255 5060 OK (74 ms)
1/1 192.168.0.21 D 255.255.255.255 5060 OK (4 ms)
3 sip peers [2 online , 1 offline]
***** Then I dial something from line 23******
3 sip peers [2 online , 1 offline]
*CLI> Nov 4 14:22:56 NOTICE[9714]: chan_sip.c:8103 handle_response: Peer '23' is now REACHABLE! (51ms / 1000ms)
sip show peers
Name/username