[Asterisk-biz] Replacing Panasonic PBX

[Pal]

Basically which to place the asterisk box at same location as Panasonic pbx
(here in UK), which has 4 separate incoming BT isdn lines and connects to a
24 port patch panel

Which two cards would people recommend for connection of the asterisk pbx to
the isdn lines and the existing patch panel, so utilising the existing
Panasonic phones (approx 18 extensions) - all future extensions will then be
sip based (hard or soft phone)

Have no problem setting up the asterisk server and physical infrastructure
(we manage the IT at the location)

Would look to getting a consultant to then work with us in setting up the
dial plans, no problem working remotely, SSH/FTP access to the asterisk
server can be arranged etc..