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Sangoma 1TELP315LF P315 IP Phone, 2-Line SIP with HD Voice, Gigabit, 2.4 inch Color DisplayBrand: SangomaDisplay: 2.4 inch Color DisplayFeatures: Sangoma SIP VoIP Phone w/2 line appearance keys
2.4 inch 320 x 240 pixel backlit color LCD display
High definition call quality
POE - 2 switched 10/100/1000 Mbps Gigabit Ethernet; 12V Power Adapter (1TELP001LF) Not Included
Compatibility: Switchvox 7.7, FreePBX v14, PBXact v14, Asterisk v16, Endpoint Manager v14/v15, DPMA 3.6.x
Display size: 2.4 inches
Power source type: PoE and AC AdapterModel #: 1TELP315LF
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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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Grandstream GXP1628 - IP Telephone - 132 x 48 backlit graphical LCD Display - 2 line keys wiBrand: GrandstreamType: AccessoriesProtocols: SIP RFC3261, TCP / IP / UDP, RTP / RTCP, HTTP / HTTPS, ARP / RARP, ICMP, DNS (A record,SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDPMED, LDAP, TR-069, 802.1x, TLS, SRTPSecurity: User and administrator level access control, MD5 and MD5-sess based authentication, 256-bit AES encrypted configuration file, TLS, SRTP, HTTPS, 802.1x media access controlModel #: Newegg_Delete2