[asterisk-users] 7912 phones loosing registration

[Jerry Geis]

I have a handful of 7912's connected to my asterisk 1.2.14 server. (6 to 
be exact).

I get the X on the display sometimes for loosing registration.

I have the config file for the 7912's
SipRegInterval: 60

and asterisk is the default.
; maxexpirey=3600
;defaultexpirey=120

I've not changed them.

How can I keep these phones online and stop loosing registration?
Thanks,

Jerry