Cisco 6921 is inexpensive business class IP phone model supporting video connection (Cisco UC Phone 6921, Standard Handset).
Cisco 6921 IP phone supports up to 2 lines has full-duplex loudspeaker, supports call holding on each line, hold, transfer, conference keys, tricolor indication of line condition, functional keys for simplified use of IP phone functions.
Elmer Sinaza is a provider of TDM and VoIP phone calls. Using most recent technologies and extensive relations, Elmer Sinaza permits to cut the costs of phone calls considerably.