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| Item number: C1EE6-8829657 Manufacturer no.: 1301044 EAN/GTIN: 6938818306059 |
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![](/p.gif) | Yealink SIP-T31G - VoIP phone with caller ID - 5-way call capability - SIP, SIP v2, SRTP - 2 lines - classic gray More information: General | Product Type | VoIP phone | ![](/p.gif) | Body Colour | Classic gray | Miscellaneous | Cables Included | Ethernet cable - 1.5 m | ![](/p.gif) | Connections | Headset jack / RJ-9 ¦ Handset jack / RJ-9 | ![](/p.gif) | Included Accessories | Stand | ![](/p.gif) | Placing / Mounting | Wall-mountable, table-top | Display | Type | LCD display - monochrome | ![](/p.gif) | Diagonal Size | 2.3" | ![](/p.gif) | Display Resolution | 132 x 64 pixels | ![](/p.gif) | Display Location | Base | ![](/p.gif) | Backlit | Yes | Phone Features | Dialer Location | Base | ![](/p.gif) | Conference Call Capability | 5-way | ![](/p.gif) | Volume Control | Yes | ![](/p.gif) | Indicators | Voice message waiting indicator | ![](/p.gif) | Speakerphone | Yes | ![](/p.gif) | Additional Functions | Call recording, Intercom, mute, Do Not Disturb (DND) | ![](/p.gif) | Call Services | Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability | ![](/p.gif) | Caller ID Type | Caller ID | Dimensions & Weight (Base) | Width | 18.8 cm | ![](/p.gif) | Depth | 18.9 cm | ![](/p.gif) | Height | 16.2 cm | Phone Memory | Phone Directory Capacity | 1000 names & numbers | IP Telephony | Network Protocols | IP, TCP, TFTP, UDP, HTTP, HTTPS, Link Layer Discovery Protocol (LLDP), SRTP, DNS SRV, STUN | ![](/p.gif) | Main Features | Multiple VoIP protocol support, integrated Ethernet switch | ![](/p.gif) | Voice Codecs | G.722, G.723.1, G.729, G.729a, G.726, iLBC, Opus, G.711A/µ | ![](/p.gif) | Quality of Service | IEEE 802.1Q (VLAN), IEEE 802.1p | ![](/p.gif) | IP Address Assignment | DHCP, static, PPPoE | ![](/p.gif) | Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T | ![](/p.gif) | VoIP Protocols | SIP, SIP v2, SRTP | ![](/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 | 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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