Part: HT802
Grandstream HT802 2-port FXS Analog Telephone Adapter

Part: SPA8000-G1
Cisco SPA8000 8-Port IP Telephony Gateway VoIP phone adapter ATA 8-phone FXS

Part: SPA122
Cisco SPA122 ATA with Router VoIP phone adapter 2 phone (FXS)

Part: DP710
Grandstream DP710-OB VoIP DECT Phone - Handset and Charger Unit