Aarvy LLC United States
- Hardware
- Hosted VoIP billing service provider
- Internet Telephony Service Provider
- Voip Termination ISP
- IP devices
- PC to Phone
- Phone To Phone
- Web To Phone
- Audiocodes
- Cisco Systems
- Welltech
- Billing system of own development
- IP Phone
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.
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