Troubleshooting Cisco/Linksys SPA-942 phones with a syslog Server

Chances are you're using an Asterisk server on Linux with your SPA-941, SPA-942, or SPA-962 VoIP phones. If you're having an issue, like trouble upgrading firmware it's nice to know what the phone is saying. Simple.

Enable remote syslog logging:
On your Linux machine, in this case CentOS, enable remote syslog logging in /etc/sysconfig/syslog by adding a -r to the SYSLOGD_OPTIONS line. It will end up looking something like this:
SYSLOGD_OPTIONS="-r -m 0"

Restart syslog (/etc/init.d/syslog restart) and then onto the phone.

Enable Logging on the SPA device
On your SPA device under (Admin -> System) enter the IP of your syslog server into the boxes and set a debug level (0 is off, 3 is most verbose):


Look at your logs:
In /var/log/messages you should see some output the phone is putting out. This is an example of a successful firmware upgrade on an SPA-941
Feb 25 13:06:18 10.0.22.114 SPA-941 00:0e:08:23:15:2c -- Requesting upgrade http://10.0.22.15:80/spa941-5-1-8.bin
Feb 25 13:06:19 10.0.22.114 fprv_upgrade_from_buffer_priv(int manual:0, unsigned char *buf: kOsMoS9 fIrMwArE, int file_len: 757258)
Feb 25 13:06:19 10.0.22.114 fprv_upgrade_from_buffer_priv(int manual:0, unsigned char *buf: kOsMoS9 fIrMwArE, int file_len: 757258)
Feb 25 13:06:19 10.0.22.114 ** old magic: kOsMoS9 fIrMwArE, new magic: kOsMoS9 fIrMwArE
Feb 25 13:06:19 10.0.22.114 ** old magic: kOsMoS9 fIrMwArE, new magic: kOsMoS9 fIrMwArE
Feb 25 13:06:44 10.0.22.114 SPA-941 00:0e:08:23:15:2c -- Successful upgrade http://10.0.22.15:80/spa941-5-1-8.bin -- new image 5.1.8

There's not a lot of documentation from Cisco/Linksys on error codes and reboot reasons..on your own there!

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