I have a number of Linksys SPA942 phones connected to Voipfone. I am encountering issues with the phones loosing registration randomly with the line LEDs going orange. A strange behaviour I have noticed when playing with the phones' various configuration parameters is that these seem to be re-registering every 47 seconds as seen on the HTTP info page of the admin panel of the phones.
In the 'Proxy & Registration' section of the relevant Extension page (EXT 1 ), I change the 'Register Expires:' setting to 120 or even 300 but the phone continues to register every 47 seconds as before.
My question is, does anybody know which parameter is in control of this 47 second registration cycle on these phones? The phones are running on firmware version 6.1.5(a)