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Yealink SIP- T31P Entry-level IP Phone with 2 Lines & HD voiceBrand: YealinkPart Number: SIP-T31PType: VoIP PhonesSecurity: NETWORK AND SECURITY
SIP v1 (RFC2543), v2 (RFC3261)
Call server redundancy supported
NAT traversal: STUN mode
Proxy mode and peer-to-peer SIP link mode
IP assignment: static/DHCP
HTTP/HTTPS web server
Time and date synchronization using SNTP
UDP/TCP/DNS-SRV (RFC 3263)
QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
SRTP for voice
Transport Layer Security (TLS 1.3)
HTTPS certificate manager
AES encryption for configuration file (AES256)
Digest authentication
OpenVPN, IEEE802.1X, L2TP VPN
IPv6
LLDP/CDP/DHCP VLAN
ICE
WPA2/WPA3
Secure boot
GARP (Generic Attribute Registration Protocol)Model #: SIP-T31P
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snom SNO-821-BK 821 VoIP Phone - BlackBrand: snomType: TelephoneSecurity: HTTPS (server/client)
Transport Layer Security (TLS)
SRTP (RFC 3711), SIPS, RTCP, VLAN (IEEE 802.1X)
LLDP-MEDPorts: 2 x IEEE 802.3/1 Gigabit Switch
USB Type AModel #: SNO-821-BK
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Yealink SIP-T33G IP Phone with 4 Lines & Color LCDBrand: YealinkPart Number: SIP-T33GType: VoIP PhonesSecurity: NETWORK AND SECURITY
SIP v1 (RFC2543), v2 (RFC3261)
Call server redundancy supported
NAT traversal: STUN mode
Proxy mode and peer-to-peer SIP link mode
IP assignment: static/DHCP
HTTP/HTTPS web server
Time and date synchronization using SNTP
UDP/TCP/DNS-SRV (RFC 3263)
QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
SRTP for voice
Transport Layer Security (TLS 1.3)
HTTPS certificate manager
AES encryption for configuration file (AES256)
Digest authentication
OpenVPN, IEEE802.1X, L2TP VPN
IPv6
LLDP/CDP/DHCP VLAN
ICE
WPA2/WPA3
Secure boot
GARP (Generic Attribute Registration Protocol)Model #: SIP-T33G
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Cisco 6851 IP Phone - Corded, Wall Mountable, Desktop - Charcoal, 4 x Total Line - VoIP - 2 x Network (RJ-45) - PoE PortsBrand: Cisco Systems, IncPart Number: CP-6851-3PW-NA-K9=Specifications: Technical Information
Handset Connectivity Technology:
Corded
Base Unit Connectivity Technology:
Corded
IP Phone Technology:
VoIP
Total Number of Phone Lines:
4
Caller ID:
Yes
Speakerphone:
Yes
Display & Graphics
Display Color:
Monochrome
Interfaces/ Ports
Network (RJ-45):
Yes
Number of Network (RJ-45) Ports:
2
PoE (RJ-45) Port:
Yes
Management & Protocols
Communication Protocols:
SIP
IPv4
DHCP
SNTP
NAT
STUN
UDP
TCP
LLDP
SRTP
TLS
LDAP
IPv6
Power Description
Power Source:
AC Adapter
Physical Characteristics
Product Color:
Charcoal
Form Factor:
Wall Mountable
Desktop
Height:
8.2"
Width:
10.4"
Depth:
1.3"
Weight (Approximate):
1.36 lbModel #: CP-6851-3PW-NA-K9=
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Yealink SIP-T44W - WI-Fi IP Phone - 12 VoIP Accounts. 2.8-Inch Color Display. Dual-Port Gigabit Ethernet, PoE, Power Adapter Not IncludedBrand: YealinkPart Number: SIP-T44WType: CordedSecurity: NETWORK AND SECURITY
SIP v1 (RFC2543), v2 (RFC3261)
Call server redundancy supported
NAT traversal: STUN mode
Proxy mode and peer-to-peer SIP link mode
IP assignment: static/DHCP
HTTP/HTTPS web server
Time and date synchronization using SNTP
UDP/TCP/DNS-SRV(RFC 3263)
QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
SRTP for voice
Transport Layer Security (TLS 1.3)
HTTPS certificate manager
AES encryption for configuration file (AES256)
Digest authentication: MD5/SHA1/SHA224/-SHA256/SHA384/ SHA512
OpenVPN, IEEE802.1X, L2TP VPN
IPv6
LLDP/CDP/DHCP VLAN
ICE
WPA2/WPA3
Secure boot
GARP (Generic Attribute Registration Protocol)Model #: SIP-T44W
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HP Poly VVX 250 4-Line IP Corded Phone and PoE-Enabled | 89B62AA#AC3Part Number: 89B62AA#AC3Type: VoIP PhonesStandards: USBProtocols: 10/100/1000 Base-TX across LAN and PC ports; Conforms to IEEE802.3- 2005 (Clause 40) for physical media attachment; Conforms to IEEE802.3- 2002 (Clause 28) for link partner auto-negotiation; Manual or dynamic host configuration protocol (DHCP) network setupModel #: 89B62AA#AC3