Cisco SPA112, 2-Port Phone Adapter. works over an IP network to connect analog phones and fax machines to a VoIP service provider. Dimension (101 x 101 x 28 mm)
Planet VIP-157S, 2 FXS SIP Analog Telephone Adapter, 2-Port SIP ATA – 2*RJ45, 2 * FXS, T.38 FoIP, converts standard telephones to IP-based networks.
Planet VIP-1120PT, Two-line High Definition Color POE SIP IP Phone: (2.4-inch Color LCD, G.722 HD Voice, 2 SIP Lines, Multi-Language, 3-way Conferencing, Caller ID, DND, PoE, QoS, VPN, VLAN, STUN, Auto Provision, TR069)