Could you please recommend a Cisco router for below requirement.
There are 20 remote sites with same requirement.
1. Maximum of 4 users with IP Phones connecting to central site (Callmanager).
2. Bandwidth between remote and central site is 512 kbps (VSAT).
3. PSTN connection: 2-3 Analog lines (POTS).
4. Fax/Modem: One
5. SRST feature as fallback in case WAN link (VSAT) goes down.
6. Optional: 4 port PoE built in or module.