We have a problem of high abandon voip calls.
The system is using H323 protocol.
From one of the AS5350XM servers, we found high number of h245 failures compared to other AS5350XM.
A debug on h245 events showed:
Dec 27 18:18:29.575 AEST: Changing to new event: CONNECT
h323chan_chn_connect: connecting to 10.188.59.187:1720
Dec 27 18:18:29.575 AEST: h323chan_gw_conn: Created socket fd=-1
Dec 27 18:18:29.575 AEST: h323chan_gw_conn: socket failure: errno=5 errstr=I/O errorh323chan_chn_connect: h323chan_gw_conn failed, error 5
Dec 27 18:18:29.575 AEST: h323chan_chn_sm: Connect Failed
Dec 27 18:18:29.579 AEST: h323chan_chn_process_read_socket: fd=2 of type CONNECTED has data
Dec 27 18:18:29.615 AEST: h323chan_chn_process_read_socket: fd=2 of type CONNECTED has data
sh h323 gateway cause-codes showed this:
38 network out of order ( 41 438509
41 temporary failure (41) 2731 1576
42 switch congestion (42) 8 0
44 no requested circuit ( 38 0
47 no resource (47) 60 2068377