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| Item number: C1EE6-6933028 Manufacturer no.: SIP-T21P-E2 EAN/GTIN: 6938818301191 |
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![](/p.gif) | Yealink SIP-T21P E2 - VoIP phone - SIP, SIP v2 - 2 lines More information: General | Product Type | VoIP phone | Miscellaneous | Connections | Headset jack / RJ-9 | ![](/p.gif) | Placing / Mounting | Wall-mountable, table-top | Display | Type | LCD display - monochrome | ![](/p.gif) | Display Resolution | 132 x 64 pixels | ![](/p.gif) | Display Location | Base | ![](/p.gif) | Backlit | Yes | Phone Features | Dialer Location | Base | ![](/p.gif) | Indicators | Visual ringer light, voice message waiting indicator, line status indicator | ![](/p.gif) | Speakerphone | Yes | ![](/p.gif) | Additional Functions | Web browser, Intercom | ![](/p.gif) | Messaging Services | SMS | ![](/p.gif) | Call Services | Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability | Dimensions & Weight (Base) | Width | 20.9 cm | ![](/p.gif) | Depth | 18.8 cm | ![](/p.gif) | Height | 15 cm | Phone Memory | Phone Directory Capacity | 1000 names & numbers | IP Telephony | Network Protocols | IP, TCP, TFTP, UDP, HTTP, DNS, HTTPS, SRTP, RTCP, SNTP | ![](/p.gif) | Main Features | Integrated Ethernet switch | ![](/p.gif) | Voice Codecs | G.722, G.723.1, G.729ab, G.711u, G.711a, G.726, iLBC | ![](/p.gif) | Quality of Service | IEEE 802.1Q (VLAN), Differentiated Services (DiffServ), IEEE 802.1p, Type of Service (ToS) | ![](/p.gif) | IP Address Assignment | DHCP, static | ![](/p.gif) | Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX | ![](/p.gif) | VoIP Protocols | SIP, SIP v2 | ![](/p.gif) | 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) | ![](/p.gif) | Lines Supported | 2 lines | ![](/p.gif) | Security | EAP-MD5, IEEE 802.1X, TLS | ![](/p.gif) | Network Features | Network Address Translation (NAT), Class 2 PoE, Lightweight Directory Access Protocol (LDAP) | ![](/p.gif) | Power Over Ethernet (PoE) Support | Yes | ![](/p.gif) | VoIP | Yes |
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