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YEALINK SIP-T54W Prime Business PhoneFrequency Band: 2.4 GHzAdditional Features: 4.3" 480 x 272-pixel color display with backlight
Adjustable LCD screen
Built-in Bluetooth 4.2
Built-in dual band 2.4G / 5G Wi-Fi (802.11a/b/g/n/ac)
USB 2.0 port for USB recording, wired / wireless USB headsets and EXP50
Up to 16 VoIP accounts
Dual-port Gigabit Ethernet
PoE support
HAC Handset
Paperless label design
Wall mountableModel #: SIP-T54W DUP
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HP Poly CCX 600 Business Media Phone for Microsoft Teams and PoE-enabled | 82Z84AABrand: HPType: VoIP PhonesProtocols: FTP/TFTP/HTTP/HTTPS server-based central provisioning; Hardware diagnostics; Manual or dynamic host configuration protocol (DHCP) network setup; Network address translation support for static configuration and Keep-Alive; QoS Support — IEEE 802.1p/Q tagging (VLAN), Layer 3 TOS, and DHCP; Status and statistics reporting; Syslog Event Logging; Conforms to IEEE802.3-2005 (Clause 40) for physical media attachment; Conforms to IEEE802.3-2002 (Clause 28) for link partner auto-negotiation; Time and date synchronization using SNTP; SIP signaling; RTCP and RTP support; IPv4; IPv6; Provisioning and call server redundancy support; DNS-SRVPorts: 1 USB 2.0 Type-A (for media and storage applications); 1 USB 2.0 Type-C® (for media and storage applications); 2 RJ-45 (10/100/1000BASE-TX Mbps)Model #: 82Z84AA
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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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Yealink SIP-T44U SIP Phone for Workers of Co-working SpaceBrand: YealinkPart Number: SIP-T44UType: 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: 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-T44U
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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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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- T31G Gigabit IP Phone with 2 Lines & HD voiceBrand: YealinkPart Number: SIP- T31GType: 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-T31G