Description
Yealinkâs SIP-T21P makes full-use of high-quality materials and of a large LCD data display. It offers a smooth user experience, much more visual information at a glance with HD Voice characteristics. The T21P supports VoIP account, simple, flexible and secure installation. It also features a IPv6, Open VPN and a redundancy server support. The T21P E2 optimizes productivity in both small and large office environments.
Specifications
Summary
- Product Description
- Yealink SIP-T21P - VoIP phone - 3-way call capability
- Product Type
- VoIP phone
- Main Features
- Integrated Ethernet switch
- VoIP Protocols
- SIP, SIP v2
- Voice Codecs
- G.722, G.723.1, G.729ab, G.711u, G.711a, G.726, iLBC
- Lines Supported
- 2 lines
- Intercom
- Yes
- Speakerphone
- Yes (digital duplex)
- Call Services
- Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold
- Automatic Redial
- Yes
- Display
- LCD display - monochrome
- Network Ports Qty
- 2 x Ethernet 10Base-T/100Base-TX
Detailed Specification
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
- Intercom
- Yes
- Speakerphone
- Yes (digital duplex)
- Automatic Redial
- Yes
- Voice Recording
- Yes
- Menu Operation
- Yes
- Indicators
- Voice message waiting indicator
- Additional Functions
- Intercom, voice recording, automatic redial
- Additional Features
- Music on hold, built-in web server, BLF status lamps
IP Telephony
- Main Features
- Integrated Ethernet switch
- VoIP
- Yes
- VoIP Protocols
- SIP, SIP v2
- Voice Codecs
- G.722, G.723.1, G.729ab, G.711u, G.711a, G.726, iLBC
- Lines Supported
- 2 lines
- Quality of Service
- IEEE 802.1Q (VLAN), IEEE 802.1p, Type of Service (ToS)
- IP Address Assignment
- DHCP, static
- Security
- EAP-MD5, IEEE 802.1X, TLS
- Power Over Ethernet (PoE) Support
- Yes
- Network Protocols
- IP, TCP, TFTP, UDP, HTTP, DNS, HTTPS, SRTP, SNTP
- Network Ports Qty
- 2 x Ethernet 10Base-T/100Base-TX
- 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
- Display Resolution
- 132 x 64 pixels
Miscellaneous
- Connections
- 2 x handset jack / RJ-9
- Placing / Mounting
- Wall-mountable, table-top
- Cables Included
- Network cable
- Compliant Standards
- ISO 9001, FCC, RoHS, REACH
Dimensions & Weight (Base)
- Width
- 209 mm
- Depth
- 188 mm
- Height
- 150 mm
