[cisco-voip] 8 channel GSM gateways?

[Robert Kulagowski]

One of our offices (in Brazil) wants to deploy 8 cell phones to make
calls to cellular destinations cheaper. (Cell provider has cheap
on-net calls)

We've had bad experiences with analog gateways in the past (disconnect
supervision problems).

Does anyone have any recommendations for an 8-port GSM gateway (either
PRI or H.323/SIP interface) which can be used in Brazil?

If we do manage to find such a box, do you just pull the SIM cards
from 8 cell phones and plug them into the box?

Thanks.