[Asterisk-Users] Asterisk DNS issue

[ismaelg]

Hello all,

I just configure Bind 9 in our LAN to resolve the Asterisk name 
sip.bussines.com for our phones.

I want that when a local extensión calls to another local extension, the 
phone shows <Extension>@<DNS name> instead of <Extension>@<ip address> 
like now happens.

In all my phones I configure the sip server like sip.bussines.com (dns 
name), but I don't know how to get it.

Someone could give me some hint?
any clue will be appreciated.

Thanks in advice.

Ismael Gil.