KTA2110 is a 1FXS,1PSTN ata, equipped with Bridge & Router function, it could create a VPN (Virtual Private Network) connecting several computers in your family to the internet.
Additionally, it has a PSTN port which can access to PSTN line at the same time. You can shift freely between PSTN mode and VoIP one. What's more, when power lost, it can shift to PSTN mode automatically.  Fully support Asterisk.
----in our promotion time,  the whole sale price for 100~1000 pcs is only USD39

Competitive Features:
SIP protocol
For consumer or family use
1 FXS port, 1 PSTN (Can use for PSTN in and out to PSTN) port
Ethernet ports: TWO* 10/100 Base-T Ethernet ports,
Bridge/Router functionFunctions: Out route selection(use VoIP or PSTN),

Auto provisioning, auto new version check, auto upgrade

Functions: Caller ID transfer(VoIP and PSTN),Volume adjust
SIP features: Call hold/Retrieve, Call waiting, Call transfer, 3-way calling, G.711 fax, MWI, Do Not Disturb, Call forwarding: Busy, No answer, Unconditional, T.38 FAX

Impedance: optional
Size:108* 72*26 (L *W *H)