480 Temporaly Unavailable

Hi!

I have a Gateway GSM Voiceblue Next. In some calls I report an error 480 temporaly unavailable. I have done a battery of tests towards the same number, these calls being identical, and in most cases it does not fail, but sometimes this error jumps.
This occurs since you upgrade to Asterisk 13.21-cert4, but the configuration is exactly the same.

Call example:

[…]
[Nov 14 11:05:57] VERBOSE[12503][C-00000102] pbx.c: Executing [6XXXXXXXX@000001_internal:7] Dial(“SIP/319-000002ab”, “SIP/6XXXXXXXX@sip_gw_gsm,rT”) in new stack
[Nov 14 11:05:57] VERBOSE[12503][C-00000102] netsock2.c: Using SIP RTP CoS mark 5
[Nov 14 11:05:57] VERBOSE[12503][C-00000102] app_dial.c: Called SIP/6XXXXXXXX@sip_gw_gsm
[Nov 14 11:06:00] VERBOSE[12503][C-00000102] app_dial.c: SIP/sip_gw_gsm-000002ac is ringing
[Nov 14 11:07:01] VERBOSE[12503][C-00000102] app_dial.c: SIP/sip_gw_gsm-000002ac redirecting info has changed, passing it to SIP/319-000002ab
[Nov 14 11:07:01] VERBOSE[12503][C-00000102] app_dial.c: SIP/sip_gw_gsm-000002ac is busy
[Nov 14 11:07:01] VERBOSE[12503][C-00000102] app_dial.c: Everyone is busy/congested at this time (1:1/0/0)
[Nov 14 11:07:01] VERBOSE[12503][C-00000102] pbx.c: Executing [6XXXXXXXX@000001_internal:8] Hangup(“SIP/319-000002ab”, “”) in new stack
[Nov 14 11:07:01] VERBOSE[12503][C-00000102] pbx.c: Spawn extension (000001_internal, 6XXXXXXXX, 8) exited non-zero on ‘SIP/319-000002ab’

It appears busy however the SIMs and the destination are idle.

Configuration:

[sip_gw_gsm]
type=friend
host=dynamic
;secret=XXX
md5secret=XXX
username=sip_gw_gsm
context=000001_inbound_gsm
qualify=5000
insecure=invite
canreinvite=no
dtmfmode=rfc2833
disallow=all
allow=g729
allow=alaw
nat=yes

Any idea?

Hi!

Any idea?

Thanks!

Look at the logs from the gateway, or, just possibly, look to see if any additional information was included in the 480 response.

I used to receive this answer due to mismatch of phone format, while redirecting incoming calls to PSTN (either phone B or redirecting phone). The SS7 signalling did not get TON from SBC, just a phone number and blocked subscriber-format numbers (TON 2, should be national or international).