Had IAX working between a number of servers for months however just recently (2 weeks) a number of servers can no longer communicate with each other even though they are showing as visible to each server.
Errors include Active Channels with unknown format.
Channel Peer Username ID (Lo/Rem) Seq (Tx/Rx) Lag Jitter JitBuf Format FirstMsg LastMsg
(None) 192.XX.XXX.XXX (None) 17627/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 19308/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 19871/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 19981/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 43.2XX.XX.XXX (None) 20906/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 43.2XX.XX.XXX (None) 22485/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 22814/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 23549/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 43.2X.XX.XXX (None) 23739/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 24034/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 24242/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 24605/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 25830/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 43.2XX.XX.XXX (None) 25874/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 26199/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 28119/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 29169/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 43.24X.XXX.XXX (None) 29434/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 29497/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 29765/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 30035/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 30647/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 31394/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
(None) 103.6.1X.XXX (None) 31726/00000 00000/00000 00000ms -0001ms 0000ms Unknow Rx:Unknown Rx:Unknown
24 active IAX channels
Also errors relating to Enforced Encryption,
[2017-04-06 14:28:07] NOTICE[30742][C-00000261] chan_iax2.c: Call initiated without encryption while forceencryption=yes option is set
[2017-04-06 14:28:07] WARNING[30742][C-00000261] chan_iax2.c: I don’t know how to authenticate 02XXXXXXXXXX to XXX.XXX.XX.XX8:4569
I am really not sure what has happened but a number of servers have just stopped being able to send and receive calls whereas they have been working for many many months. This all happened after recent upgrades and to more than one server however I cannot pinpoint what has affected things.