I work for a small company (less than 50 employees) that has some branch offices in different area codes. We’re hoping to replace our telephone systems in each branch, and with one big system that will link them all together.
I’m thinking of setting up an Asterisk box in each branch office, which would be connected to the PSTN through POTS or a PRI, and then linking the branches together with SIP trunks over our WAN. We would like to have an Asterisk server in each branch, for fault-tolerance purposes.
What I want to know, is how we could use this arrangement to link our branches together. We’re specifically interested in transferring unanswered calls from one branch to ring on telephones in another branch. Other features such as call parking/pickup between branches, and conferencing would also be attractive.
I’ve looked at www.voip-info.org, but I haven’t found any good information on setting up multiple sites with Asterisk. Can anyone point me in the right direction?
Climatic Control Company, Inc.