I noticed this on one of the client's systems. Not sure why voip.ms is not accepting the credentials. I went in and opened my trunk settings, clicked submit, and apply settings and it reconnected.
[2020-06-03 12:40:28] NOTICE[8863] chan_sip.c: Peer 'voipms' is now UNREACHABLE! Last qualify: 1
[2020-06-03 12:40:59] NOTICE[8863] chan_sip.c: -- Registration for 'xxxxxxx@chicago2.voip.ms' timed out, trying again (Attempt #2)
[2020-06-03 12:41:19] NOTICE[8863] chan_sip.c: -- Registration for 'xxxxxxx@chicago2.voip.ms' timed out, trying again (Attempt #3)
[2020-06-03 12:41:39] NOTICE[8863] chan_sip.c: -- Registration for 'xxxxxxx@chicago2.voip.ms' timed out, trying again (Attempt #4)
[2020-06-03 12:41:59] NOTICE[8863] chan_sip.c: -- Registration for 'xxxxxxx@chicago2.voip.ms' timed out, trying again (Attempt #5)
[2020-06-03 12:42:19] NOTICE[8863] chan_sip.c: -- Registration for 'xxxxxxx@chicago2.voip.ms' timed out, trying again (Attempt #6)
[2020-06-03 12:42:39] NOTICE[8863] chan_sip.c: -- Registration for 'xxxxxxx@chicago2.voip.ms' timed out, trying again (Attempt #7)
[2020-06-03 12:42:59] NOTICE[8863] chan_sip.c: -- Registration for 'xxxxxxx@chicago2.voip.ms' timed out, trying again (Attempt #8)
[2020-06-03 12:43:19] NOTICE[8863] chan_sip.c: -- Registration for 'xxxxxxx@chicago2.voip.ms' timed out, trying again (Attempt #9)
[2020-06-03 12:43:39] NOTICE[8863] chan_sip.c: -- Registration for 'xxxxxxx@chicago2.voip.ms' timed out, trying again (Attempt #10)
[2020-06-03 12:43:59] NOTICE[8863] chan_sip.c: -- Registration for 'xxxxxxx@chicago2.voip.ms' timed out, trying again (Attempt #11)
[2020-06-03 12:44:20] NOTICE[8863] chan_sip.c: -- Registration for 'xxxxxxx@chicago2.voip.ms' timed out, trying again (Attempt #12)
[2020-06-03 12:44:40] NOTICE[8863] chan_sip.c: -- Registration for 'xxxxxxx@chicago2.voip.ms' timed out, trying again (Attempt #13)
[2020-06-03 12:45:00] NOTICE[8863] chan_sip.c: -- Registration for 'xxxxxxx@chicago2.voip.ms' timed out, trying again (Attempt #14)
[2020-06-03 12:45:00] WARNING[8863] chan_sip.c: Forbidden - wrong password on authentication for REGISTER for 'xxxxxxx' to 'chicago2.voip.ms'