[Asterisk-Users] DNS Server Failure wreaks havoc

[Robbie Hughes]

Using IPs only and no domains didn't do the trick for me, but then I  
may have missed one or two without realising. I did find that putting  
a DNS server in the asterisk box works perfectly for asterisk, but  
the grandstream budgetone 101 phones i had relied on a dns (even if i  
replaced the ntp server with an IP) and would not work without them.  
the symptom would be the call comes in (over ISDN), rings , but the  
phones don't pickup. This was not an issue for SPA-841s or SNOM 190s,  
both of which are perfectly happy with just IPs.

Funny things was that they weren't happy using the asterisk box's dns  
either - even though i could dig @192.168.1.254 domain.com from my  
laptop without problems.