VoIP phone with caller ID - 5-way call capability - SIP, RTCP-XR, VQ-RTCPXR, SRTP - 12 lines - classic gray
| Main Specifications | |
|---|---|
| Product Description | Yealink SIP-T44U - VoIP phone with caller ID - 5-way call capability |
| Product Type | VoIP phone with caller ID |
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
| VoIP Protocols | SIP, RTCP-XR, VQ-RTCPXR, SRTP |
| Voice Codecs | G.722, G.711a, G.711u, G.723.1, G.729, G.729A/B, G.726, iLBC |
| Lines Supported | 12 lines |
| Speakerphone | Yes |
| Call Services | Call Forwarding, Call Waiting, Call Transfer, Call Hold, Voice Mail, Call park/pickup, Caller ID |
| Display | LCD display - color - Yes |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
| Compatible Software | Yealink Redirection and Provisioning Service (RPS) |
| Body Color | Classic gray |
| General | |
| Product Type | VoIP phone |
| Body Color | Classic gray |
| Miscellaneous | |
| Connections | Headset jack / RJ-9 ¦ Handset jack / RJ-9 ¦ 2 x USB |
| Hearing Aid Compatible | Yes |
| Placing / Mounting | Wall-mountable, table-top |
| Cables Included | Ethernet cable - 6.6 ft |
| Included Accessories | Stand |
| Power | |
| Power Consumption | 1.7-4.1 W (PSU), 2.0-4.9 W (PoE) |
| Display | |
| Type | LCD display - color |
| Display Location | Base |
| Diagonal Size | 2.8" |
| Display Resolution | 320 x 240 pixels |
| Backlit | Yes |
| Display Languages | Multilingual |
| Phone Features | |
| Call Services | Call Forwarding, Call Waiting, Call Transfer, Call Hold, Voice Mail, Call park/pickup, Caller ID |
| Caller ID Type | Caller ID |
| Dialer Location | Base |
| Conference Call Capability | 5-way |
| Speakerphone | Yes |
| Volume Control | Yes |
| Indicators | Voice message waiting indicator, call waiting indicator, busy lamp field (BLF) |
| Additional Functions | Acoustic Shield Technology, call recording, redial, speed dial memory, emergency call, mute, auto answer, Do Not Disturb (DND), blacklist, Bridged Line Appearance (BLA), anonymous call, anonymous call rejection, HD Voice |
| Dimensions & Weight (Base) | |
| Width | 8.9 in |
| Depth | 8.1 in |
| Height | 6.9 in |
| Phone Memory | |
| Phone Directory Capacity | 1000 names & numbers |
| Dimensions & Weight (Handset) | |
| Width | 9.7 in |
| Depth | 8.8 in |
| Height | 4.7 in |
| IP Telephony | |
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
| VoIP | Yes |
| VoIP Protocols | SIP, RTCP-XR, VQ-RTCPXR, SRTP |
| Voice Codecs | G.722, G.711a, G.711u, G.723.1, G.729, G.729A/B, G.726, iLBC |
| Lines Supported | 12 lines |
| Quality of Service | IEEE 802.1Q (VLAN), IEEE 802.1p, Layer 3 TOS |
| IP Address Assignment | DHCP, static |
| Security | TLS, SSL, AES, IEEE 802.1X, SRTP |
| Power Over Ethernet (PoE) Support | Yes |
| Network Protocols | Lightweight Directory Access Protocol (LDAP), FTP, TFTP, HTTP, HTTPS, SNTP, UDP, TCP, DNS SRV, DSCP, IPv6, Link Layer Discovery Protocol (LLDP), Cisco Discovery Protocol (CDP), DHCP, VLAN, IP, SRTP, TR-069, STUN |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
| Compatible Software | Yealink Redirection and Provisioning Service (RPS) |
| Voice Features | Yealink Optima HD voice technology, HD audio, acoustic echo cancellation (AEC), voice activity detection (VAD), comfort noise generation (CNG), packet loss concealment (PLC), adaptive jitter buffer (AJB), automatic gain control (AGC), HD Voice |
| Network Features | 12 SIP identities / accounts, Lightweight Directory Access Protocol (LDAP), IEEE 802.3af, Class 2 PoE, Network Address Translation (NAT) Traversal, STUN, ICE |