Problems with hardware not being detected or supported. Please post a full output of "lspci -v" if your hardware is not detected, and all relevant information about your hardware
Grandstream GS-HT802 2 Port Analog Telephone Adapter VoIP Phone & Device, Black
$32.00
Grandstream GS-HT802 2 Port Analog Telephone Adapter VoIP Phone & Device, Black
$29.99
Lot Of 7 Cisco CP-7945G VOIP Phone With Stand & Handset Business IP Phone 7945
$41.99
$20.49
Polycom VVX 411 12-Line VOIP Phone - 2200-48450-025
$6.00
Grandstream GS-GXP2160 Multiline Bluetooth VoIP Telephone - Black
$25.99
Lightly Used Cisco 8811 Series VoIP phone Factory Reset great condition
$19.95
Cisco/Linksys SPA2102 VoIP Phone Adapter Router 2FXS (Unlocked)
$16.99
Polycom VVX 411 IP VOIP POE Gigabit Telephone [L/N]
$24.99
*New* CISCO CP-8811-K9 VoIP Gigabit POE Telephone SIP Charcoal
$74.99