[resolved] Strange SIP message

I get the following message on the console. The IP address is that of an Audiocodes MP-118, which seems to be working fine. These messages occur every 30 seconds or so regardless of whether there’s a call taking place. What does this mean?

-- Got SIP response 481 "Call/Transaction Does Not Exist" back from

Could be the Audiocodes is trying to SUBSCRIBE to voicemail or presence, and it has not been configured.

Try enabling sip debug on the console and see what the response is being generated against.

That’s exactly what it was - the entry in the sip.conf file had a mailbox= statement in it but the voicemail.conf did not have that mailbox defined. that’s what you get when you cut and paste without looking very carefully - thanks for the tip.