Cannot dial out via ISDN if the ADSL is down, any solution?


#1

I’ve 1 PRI ISDN used via chan_modem, 3 register lines into sip.conf, 6 voip phone.

If i start asterisk and the ADSL is down the 6 voip phones are unable to call each other and also to place call via ISDN because they are not registered.

Is there any solution to this problem?


#2

Does your DNS work when the dsl line is down? Maybe you should use ip addresses instead of domain names. Running a caching name server could help.


#3

No it does not works, i’ll give a try putting fixed ip address into /etc/hosts
is this all the problem? i dunno … it seems that asterisk will not go onto the other phone registration until the first “register =>” are completed.