Yealink SIP-T77U
VoIP phone with caller ID/call waiting | 10-way call capability | SIP, SIP v2, ICE | classic gray
Images for illustration purposes only, actual product may differ
Main Specification
| Product Description | Yealink SIP-T77U - VoIP phone with caller ID/call waiting - 10-way call capability |
|---|---|
| Product Type | VoIP phone with caller ID/call waiting |
| Compatible Platforms | Broadsoft Broadworks, 3CX, Metaswitch, Asterisk |
| Main Features | Integrated Ethernet switch, multiple VoIP protocol support |
| VoIP Protocols | SIP, SIP v2, ICE |
| Voice Codecs | G.722, PCMU, G.711μ, PCMA, G.711a, G.723.1, G.729, G.729a, G.729b, G.729A/B, G.726, iLBC |
| Speakerphone | Yes |
| Call Services | Caller ID, Call Hold, Call Forwarding, Call Waiting, Call Transfer, Voice Mail, Call park/pickup |
| Display | LCD display - colour - Yes |
| Display Features | Capacitive touch screen, tilt screen, screen saver, Dark mode |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
| Body Colour | Classic gray |
General
| Product Type | VoIP phone |
|---|---|
| Compatible Platforms | Broadsoft Broadworks, 3CX, Metaswitch, Asterisk |
| Body Colour | Classic gray |
Phone Features
| Operating System | Linux 6.1 |
|---|---|
| Call Services | Caller ID, Call Hold, Call Forwarding, Call Waiting, Call Transfer, Voice Mail, Call park/pickup |
| Caller ID Type | Caller ID/call waiting |
| Dialer Location | Base |
| Conference Call Capability | 10-way |
| Speakerphone | Yes |
| Programmable Buttons Qty | 84 |
| Volume Control | Yes |
| Indicators | Message waiting indicator, call waiting indicator, busy lamp field (BLF) |
| Additional Functions | HD audio, Acoustic Shield Technology, Smart Noise Filtering, mute, Do Not Disturb (DND), emergency call, redial, call return, auto answer, blacklist, phonebook transfer, Bridged Line Appearance (BLA), anonymous call, anonymous call rejection, power saving mode, keyboard lock |
IP Telephony
| Main Features | Integrated Ethernet switch, multiple VoIP protocol support |
|---|---|
| VoIP | Yes |
| VoIP Protocols | SIP, SIP v2, ICE |
| Voice Codecs | G.722, PCMU, G.711μ, PCMA, G.711a, G.723.1, G.729, G.729a, G.729b, G.729A/B, G.726, iLBC |
| Quality of Service | IEEE 802.1p, IEEE 802.1Q (VLAN), Layer 3 TOS |
| IP Address Assignment | DHCP, static |
| Security | TLS 1.3, 256 bit AES, IEEE 802.1X, WPA2, WPA3 |
| Power Over Ethernet (PoE) Support | Yes |
| Network Protocols | RTCP-XR, VQ-RTCPXR, FTP, TFTP, HTTP, HTTPS, TR-069, STUN, SNTP, UDP, TCP, DNS SRV, DSCP, SRTP, IPv6, Link Layer Discovery Protocol (LLDP), CDP, DHCP, VLAN, GARP |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
| Voice Features | Yealink Optima HD voice technology, dual tone multi-frequency (DTMF), acoustic echo cancellation (AEC), voice activity detection (VAD), comfort noise generation (CNG), packet loss concealment (PLC), adaptive jitter buffer (AJB), automatic gain control (AGC), Zero-sp-touch, AI noise cancellation |
| Network Features | 16 VoIP accounts, Lightweight Directory Access Protocol (LDAP), IEEE 802.3af, Class 3 PoE, Network Address Translation (NAT) Traversal, open VPN |
Phone Memory
| Phone Directory Capacity | 1000 names & numbers |
|---|
Display
| Type | LCD display - colour |
|---|---|
| Display Location | Base |
| Diagonal Size | 7" |
| Display Resolution | 800 x 480 pixels |
| Backlit | Yes |
| Display Languages | Multilingual |
| Features | Capacitive touch screen, tilt screen, screen saver, Dark mode |
Miscellaneous
| Connections | Headset jack / RJ-9 Handset jack / RJ-9 USB / 4 PIN USB Type A 2 x network / RJ-45 USB / 24 pin USB-C |
|---|---|
| Hearing Aid Compatible | Yes |
| Placing / Mounting | Wall-mountable / table-top |
| Cables Included | Ethernet cable - 2 m Handset cord |
| Included Accessories | Stand |
Power
| Power Consumption | 2.48 - 2.63 W (PSU), 2.418 - 3.233 W (PoE) |
|---|
Dimensions & Weight (Base)
| Width | 26.21 cm |
|---|---|
| Depth | 16.75 cm |
| Height | 21.92 cm |
Dimensions & Weight (Shipping)
| Shipping Width | 28.5 cm |
|---|---|
| Shipping Depth | 25.3 cm |
| Shipping Height | 10.4 cm |
Product features
User-friendly display
The 7-inch color LCD display features a capacitive touch screen, allowing for intuitive navigation through the device's numerous functionalities. With options for dark mode and a screensaver, the display is adaptable to various user preferences.Enhanced audio quality
Incorporating Yealink Optima HD voice technology, this phone provides clear and rich audio during calls. Features like Smart Noise Filtering and a range of voice codecs ensure sound quality for every conversation.Robust call management
With features such as call transfer, voicemail, and conference calling capabilities for up to 10 participants, managing calls is efficient and straightforward. The device also includes 84 programmable buttons for quick access to frequently used functions.Advanced security
Equipped with WPA2 and TLS 1.3 security protocols, the SIP-T77U ensures that communications remain confidential and secure against unauthorized access, giving users peace of mind in their business operations.Flexible installation
The phone is designed for both wall mounting and table-top placement, making it adaptable to various workspace environments. Additionally, Power over Ethernet (PoE) support simplifies installation by reducing the need for separate power cables.Key selling points
- 7-inch color LCD display with capacitive touch screen
- Supports multiple VoIP protocols including SIP
- Yealink Optima HD voice technology for audio quality
- 84 programmable buttons for quick access to features
- Security features including WPA2 and TLS 1.3 for secure communications
References
MPN: 1301011
What our Customers think about us!
Page generated at:
24/06/2026 15:19:51