I have a 3640 with four FXS ports and a PRI. It is also running SRST. My understanding is that you cannot run MGCP and SRST at the same time. I have the phones set up as a route pattern that points to the 3640 as H323. The 3640 also has a PRI with DIDs.
Is there any way I can provide voice-mail to these FXS ports, or should I give up and use ATA186's or a VG200?