Optimal HD voice,Dual-Port Gigabit Ethernet,2.7 19

The SIP-T42S IP phone is a dynamic business communications tool for superior voice communications and extended functionality. It has a faster, more responsive interface and offers better overall performance. The SIP-T42S is a 12-line IP phone with multiple programmable keys for enhancing productivity. What's more, the SIP-T42S is built with Gigabit Ethernet technology for rapid call handling.

Specifications

General
   Product Type:  VoIP phone

Phone Features
   Call Services:  Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold
   Dialer Type:  Keypad
   Dialer Location:  Base
   Conference Call Capability:  3-way
   Speakerphone:  Yes
   Menu Operation:  Yes
   Indicators:  Visual ringer light, voice message waiting indicator, speakerphone indicator, headset, mute indicator
   Additional Functions:  Built-in clock, call recording, Intercom

IP Telephony
   Main Features:  Multiple VoIP protocol support, integrated Ethernet switch
   VoIP:  Yes
   VoIP Protocols:  SIP, SIP v2
   Voice Codecs:  G.722, G.723, G.729ab, G.711u, G.711a, G.726, iLBC, Opus
   Lines Supported:  12 lines
   Quality of Service:  IEEE 802.1Q (VLAN), Differentiated Services (DiffServ), IEEE 802.1p, Type of Service (ToS)
   IP Address Assignment:  DHCP, static
   Security:  IEEE 802.1X
   Power Over Ethernet (PoE) Support:  Yes
   Network Protocols:  IP, TCP, TFTP, UDP, HTTP, DNS, HTTPS, SRTP, TR-069, SNTP
   Network Ports Qty:  2 x Ethernet 10Base-T/100Base-TX/1000Base-T
   Voice Features:  Comfort noise generation (CNG), voice activity detection (VAD), HD Voice, acoustic echo cancellation (AEC), packet loss concealment (PLC), adaptive jitter buffer (AJB), automatic gain control (AGC)
   Network Features:  Network Address Translation (NAT), Class 2 PoE, Lightweight Directory Access Protocol (LDAP)

Phone Memory
   Phone Directory Capacity:  1000 names & numbers

Display
   Type:  LCD display - monochrome
   Display Location:  Base
   Diagonal Size:  2.7"
   Display Resolution:  192 x 64 pixels
   Backlit:  Yes

Miscellaneous
   Connections:  Headset jack / RJ-9 ¦ Handset jack / RJ-9 ¦ USB ¦ Electronic hook switch (EHS) / RJ-12 ¦ Network / RJ-45
   Placing / Mounting:  Wall-mountable, table-top

Dimensions & Weight (Base)
   Width:  8.3 in
   Depth:  7.4 in
   Height:  6.9 in