[Asterisk-Users] Can someone please advise

[ADEGOKE ARUNA]

Hi all

I want to set up a fully functional PBX with about 720 Extensions.
However, I am intending to have the E1 cards and a channel bank with my
asterisk server.

Can someone please help on what type of channel banks can actually take care
of the 720 extensions?

I am sorry for any act of foolishness my question would have posed to the
gurus.

goksie