IP Phones

Cisco SPA509G, Refurbished. Product type: IP Phone, Product color: Black. Lines quantity: 12 lines, Phonebook capacity: 100 entries. Display: LCD, Display resolution: 128 x 64 pixels. Voice codecs: G.711a,G.711u,G.722,G.726,G.729A. Supported network protocols: IP, TCP, TFTP, UDP, ICMP, ARP, HTTP, DNS, HTTPS, Security algorithms: 256-bit AES, VoIP protocols: SIP, SIP v2, SPCP

Cisco 3905, Refurbished. Product type: IP Phone, Product color: Black, Handset type: Wired handset. Internal memory: 32 MB, Flash memory: 4 MB. Lines quantity: 1 lines. Volume control: Digital. Display resolution: 128 x 32 pixels, Display number of colors: Monochrome, Display number of lines: 2 lines

Yealink SIP-T42S. Product type: IP Phone, Product color: Black, Handset type: Wired handset. Dual-Tone Multi-Frequency (DTMF) modes: In-band, Out-of band, SIP info. Lines quantity: 12 lines, Phonebook capacity: 1000 entries. Volume control: Digital. Display: LCD, Display diagonal: 2.7", Display resolution: 192 x 64 pixels