[asterisk-users] Upgrade 4 to 8 Analog Lines Question

[Jim Freeze]

Hello

I have an office with a T1 that provides 4 (out of 8) analog PSTN
lines thru an adtran board. I want to add 4 more analog lines.
Currently I have a Digium TDM40B. I'm wondering what the best
upgrade path is, where I define 'best' as the solution that
is most likely to work without problems (like interupt conflicts)
and work with my current echo tuning .

I see my purchase options as follows:

1) TDM40B - use with the current TDM40B
2) Sangoma Remora A20200 - use with the current TDM40B
3) Sangoma Remora A20400 - replace the current TDM40B


Any info will be greatly appreciated.

Thanks

Jim


-- 
Jim Freeze