[asterisk-users] sip reload causes unreachable

[Admin DeryTelecom]

Hi

I have a asterisk with many phones (type=friend)

When I issue the command "sip reload" some of the phones become unreachable 
and they come back just after.

I guess that the sip.conf file is too big and asterisk takes too much time 
reloading the entire file.

Is there a way to avoid this probleme or another way to add/remove sip 
phones dynamically ?

Patrick