We run 8 analog DECT phones in a retail environment and I am planning to install FreePBX to replace our 18 year old Panasonic system. I don't really want to replace the cordless phones as they're working fine and are mostly in pretty good condition.
I'm thinking a Cisco SPA8000 will connect the 8 base stations and do the job. Our requirements are pretty simple... 3 lines, 10 extensions (8 cordless, 2 wired - will use Yealink IP phone), see the CLID, transfer and park calls.
Is the SPA8000 a good option for the Cordless analogs? Is there anything else I should consider? I've considered the Panasonic KX-TGP600 but seems overkill with working handsets. Perhaps something we will migrate to as needed.
Is there anything 'wrong' having FreePBX register 3 trunks as normal phones with 2Talk as Inbound Trunks? Is it considered secure if I enable SIP through the firewall (ASA5505) permitting traffic from only the 2Talk servers? I've heard the horror stories and am cautious about doing so.