|
Features |
Specifications |
|
Signaling protocol support |
Session Initiation Protocol (SIP) |
|
Full lines supported |
● 6821: 2 lines (SIP registrations)
● 6841: 4 lines (SIP registrations)
● 6851: 4 lines (SIP registrations)
● 6861: 4 lines (SIP registrations)
● 6871: 6 lines (SIP registrations)
|
|
Language support |
● English (American)
● English (United Kingdom)
|
|
Multiple ring tones |
● The phones support user-adjustable ring tones
|
|
Quality-of-Service (QoS) options |
● The phone supports Cisco Discovery Protocol and 802.1Q/p standards, and can be configured with an 801.1Q VLAN header containing the VLAN ID overrides configured by the admin VLAN ID
|
|
Security |
● 802.1X authentication
● Device authentication
● Encrypted configuration files
● File authentication
● Image authentication
● Manufacture-Installed Certificates
● Media encryption using SRTP with Advanced Encryption Standard AES-128 or AES-256
● Signaling encryption using TLS with AES-128 or AES-256
|
|
Configuration options |
● The user can configure the IP address assignment statically or through the DHCP client
|
|
Physical dimensions (HxWxD) |
● 6800 Key Expansion Module: 8.15 x 4.45 x 1.65 in. (207 x 113 x 42 mm)
|
|
Weight |
● 6800 Key Expansion Module: 11.5 oz. (320 g)
|
|
Display |
● 6800 Key Expansion Module: Two 3.5-in (9-cm) grayscale backlit LCD displays, 160 x 270 resolution
|
|
Phone and KEM casing composition |
● Polycarbonate Acrylonitrile Butadiene Styrene (ABS) textured plastic
|
|
Power requirements |
supplies. See Table 6 for a list of available power supplies.
● 6800 Key Expansion Module: No local power supply. The KEM receives power from the attached 6851 IP phone. The attached 6851 IP phone may be powered via PoE or the 6800 (5V) power adapter
|
|
Operational temperature |
● 32° to 104°F (0° to 40°C)
|
|
Nonoperational temperature shock |
● 14° to 140°F (-10° to 60°C)
|
|
Humidity |
● Operating 10% to 90%, noncondensing
● Non-operating 10% to 95%, noncondensing
|
|
Features |
Specifications |
|
Signaling protocol support |
Session Initiation Protocol (SIP) |
|
Full lines supported |
● 6821: 2 lines (SIP registrations)
● 6841: 4 lines (SIP registrations)
● 6851: 4 lines (SIP registrations)
● 6861: 4 lines (SIP registrations)
● 6871: 6 lines (SIP registrations)
|
|
Language support |
● English (American)
● English (United Kingdom)
|
|
Multiple ring tones |
● The phones support user-adjustable ring tones
|
|
Quality-of-Service (QoS) options |
● The phone supports Cisco Discovery Protocol and 802.1Q/p standards, and can be configured with an 801.1Q VLAN header containing the VLAN ID overrides configured by the admin VLAN ID
|
|
Security |
● 802.1X authentication
● Device authentication
● Encrypted configuration files
● File authentication
● Image authentication
● Manufacture-Installed Certificates
● Media encryption using SRTP with Advanced Encryption Standard AES-128 or AES-256
● Signaling encryption using TLS with AES-128 or AES-256
|
|
Configuration options |
● The user can configure the IP address assignment statically or through the DHCP client
|
|
Physical dimensions (HxWxD) |
● 6800 Key Expansion Module: 8.15 x 4.45 x 1.65 in. (207 x 113 x 42 mm)
|
|
Weight |
● 6800 Key Expansion Module: 11.5 oz. (320 g)
|
|
Display |
● 6800 Key Expansion Module: Two 3.5-in (9-cm) grayscale backlit LCD displays, 160 x 270 resolution
|
|
Phone and KEM casing composition |
● Polycarbonate Acrylonitrile Butadiene Styrene (ABS) textured plastic
|
|
Power requirements |
supplies. See Table 6 for a list of available power supplies.
● 6800 Key Expansion Module: No local power supply. The KEM receives power from the attached 6851 IP phone. The attached 6851 IP phone may be powered via PoE or the 6800 (5V) power adapter
|
|
Operational temperature |
● 32° to 104°F (0° to 40°C)
|
|
Nonoperational temperature shock |
● 14° to 140°F (-10° to 60°C)
|
|
Humidity |
● Operating 10% to 90%, noncondensing
● Non-operating 10% to 95%, noncondensing
|
