I'm trying to find a solution for the following: we need to provide modem support in a remote office, that will only have IP connectivity. The analog line will be provided in the HQ building.
How could we use a modem in the remote office to dial out via the analog line in HQ?
This solution will be CCME based for telephony, and there might be an additional gateway when needed for this.
Would modem passthrough help us out? What would the setup look like then? Connect a gw with FXO interface in HQ to the PSTN line (might be a TDM-PBX breakout, but should be fine also), and put another GW with an FXS interface in the remote office to connect the modem to?
Any ideas, hints, tips&tricks?