[Asterisk-Users] Central Registration mechanism

[Noel Athaide]

Hello,
I would like to know if there is any mechanism whereby one can have 
several Asterisk servers catering to different physical locations but only 
one central Asterisk server responsible for client registration.

>From what I have read on the mailing lists, the one way to do this is by 
using Realtime asterisk with a MySQL database. The other is to use SER 
as a frontend. Is there a simpler method?

- Noel.