The message means that the phone did not refresh the registration and the registration expired. The message itself is harmless if the phone has been switched off or disconnected. It could also indicate NAT traversal problems if the phone is still running and is supposed to keep the registration alive.

Jan.

On 31-03 18:28, Wojciech Ziniewicz wrote:

[...] Binding '497','sip:497@192.168.0.136:5060' has expired [...]

Any ideas how to stop sipphones making theese logs ?

-- Pozdrawiam, Wojciech Ziniewicz Optocomp sp.z.o.o, www.optocomp.pl mailto: wojtekz@optocomp.pl +48(0)691031535

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