[Asterisk-Users] Supplementing Current phone system

[Ben Turner]

Has anyone used * in conjunction with an existing phone system to add certain features or to expand a department?  Currently we have an existing nortel phone system.  We would like to have the * server stand behind it and just handle VoIP services for our remote sales and technical people.  We would like them to act as normal extensions (being able to dial them by extension from the existing phone system and have them dial extensions on the existing phone sytem).   From the documentation, it appears to be possible, but I have yet to find more information on how to do it.  Has anyone done this or something similar?