General Knoppix support for those who've read the FAQ at the Wiki
AUDIO CODES MP-114 VOIP Gateway Open Box
$37.49
$199.99
VoIP IP Phone SIP WAN FV6020 Fanvil Gigabit Office Support IAX IAX2
$35.56
Grandstream GS-HT802 2 Port Analog Telephone Adapter VoIP Phone & Device, Black
$32.00
Cisco CP-7945G VOIP Phone With Stand & Handset Business IP Phone 7945
$3.00
New Cisco 7945G IP VoIP Gigabit GIGE Telephone Phone CP-7945G -
$24.95
Cisco CP-8841-K9 5 Programmable Line Key 5 inch. Color VoIP Phone SIP
$24.95
Yealink SIP-T41P PoE Ultra Elegant VoIP Phone
$29.95
Cisco 7940 Series IP Phone CP-7940G 2 Line VoIP Office Telephone Broken Stand
$12.20
CISCO CP-8821 Wireless IP VoIP Phone - Gray - NO BATTERIES
$80.00