SBC phones losing registration

[fireflyuk]

I've searched but can't find anything :-(

I have a v15 (Win Box) PBX hostied in the cloud with a handfull of extensions in two offices, all Yealink T23Gs.

Both offices have identical SBC versions (v15) and configs however every now and then and without rhyme or reason, extensions in Office A randomly lose their registration from the PBX.

When logging on to each phone in Office A, the phones all say they are registered (to the SBC presumably).

Office B appears unnaffected.

Office A has a good Draytek router, SIP ALG disabled, firewall rules identical to Office B.

All handset FW versions are the same (44.80.0.130)

Nothing obvious showing in the SBC logs, this is an extract from around the time it last happened when only a single extension decided to go away;

-----------------------------------
ERR | 20170105-112800.698 | 3CXTunnel | TUNL | 4568 | Rtp.cpp:143 | Error reading from RTP socket 456, {RS:53636}: error 10054
ERR | 20170105-112800.744 | 3CXTunnel | TUNL | 4568 | Rtp.cpp:143 | Error reading from RTP socket 456, {RS:53636}: error 10054
ERR | 20170105-112800.744 | 3CXTunnel | TUNL | 4568 | Rtp.cpp:143 | Error reading from RTP socket 456, {RS:53636}: error 10054
ERR | 20170105-112800.744 | 3CXTunnel | TUNL | 4568 | Rtp.cpp:143 | Error reading from RTP socket 456, {RS:53636}: error 10054
ERR | 20170105-112800.760 | 3CXTunnel | TUNL | 4568 | Rtp.cpp:143 | Error reading from RTP socket 456, {RS:53636}: error 10054
ERR | 20170105-112800.807 | 3CXTunnel | TUNL | 4568 | Rtp.cpp:143 | Error reading from RTP socket 456, {RS:53636}: error 10054

-----------------------------------


Thanks in advance for any thoughts.

 

[GiannosC_3CX]

Dear Fireflyuk,

Please check again the firewall rules on Office A if it permits the outbound connection to the cloud PBX and vice versa. Then check the 3cxsbc.conf file on the LocalSipAddr value if it has local SBC IP Address and is not commented out (remove #). Also please ensure that you are using the latest version of SBC.

 

[SHREK]

3CXTunnel | TUNL | 3152 | Rtp.cpp:143 | Error reading from RTP socket 584, {RS:55084}: error 10054
We are showing the same issues here as well

 

[GiannosC_3CX]

Hi shrek,

Please let us know what kind of SBC are you using? (Linux/Windows)
Also please let us know what version of SBC are you on and what version of 3cx Phone system?

 

[SHREK]

We are using Windows v14 SBC to a multitenant v14 hosted platform running win2012svr at a colo site.


[Bridge/123456]
Name=3CXSBC14.0.48426.61
ID=123456
#LocalSipPort=5060
#LocalSipAddr=0.0.0.0
Password=removed
PbxSipPort=10060
PbxSipIP=removed
SecurityMode=1
TunnelAddr=removed
TunnelPort=10090
[General]
FailoverInterval=90
PrintStatsInterval=30
ReconnectInterval=30
[Log]
Type=file # cout, cerr, file, syslog
File=C:\ProgramData\3CXSBC\Logs\3cxsbc.log
Level=ERR # "ERR", "NONE", "EMERG", "ALERT", "CRIT", "ERR", "WARNING", "NOTICE", "INFO", "DEBUG", "STACK", "ERR", "VERBOSE"

 

[GiannosC_3CX]

Hi shrek,

Could you please un-comment #LocalSipPort=5060 #LocalSipAddr=0.0.0.0 and on LocalSipAddr type you SBC IP Address. Also, on Level=ERR please change with Level=VERBOSE.
Please restart your SBC and let us know if the issue persists.