Yealink SIP-T48G

Yealink SIP-T48G is a new generation corporate phone that features a new revolutionary design, support for Optima HD audio, PoE, up to 6 SIP accounts, Bluetooth headsets via USB adapter, no paper information carriers on the case, two gigabit Ethernet ports. It also provides the ability to mount the phone on the wall, connect wired headsets and expansion modules and many other useful and convenient functions. The main advantage of the new model is undoubtedly the 7-inch LCD touch screen (800x480 pixels) with backlight.

Yealink SIP-T48G is a new generation corporate phone, featuring an ultra-elegant business design and advanced technical specifications. The 7-inch color LCD touch screen helps make working with the phone pleasant and convenient. It is also possible to connect a wireless headset using the Yealink BT40 USB adapter. The values of 29 programmable buttons are signed directly on the phone screen, freeing users from paper media on the phone case and the need to fill them in manually. The phone is ideal for senior managers, status-conscious employees, and simply businessmen who choose both quality and style.

Phone specifications

• Support for 6 SIP accounts with independent configuration.
• 29 programmable buttons with light indication, subscriber status display (BLF).
• Displaying the caller's picture/photo.
• Fully Russified: Russian menu, web interface, input of text messages and contacts in Russian.
• Keyboard with Russian alphabet.
• Phonebook with smart search (1000 entries), phonebook export/import, remote phonebook (XML, LDAP), blacklist, call history (100 entries), speed and accelerated dialing, dialing rules.
• Keypad lock, changeable logo on the phone screen, volume control, ringtone selection.
• Call hold and waiting, call forwarding and transfer, DND mode, conference calling, call pickup, intercom calls (including group intercom call: Paging), hotline, auto answer, emergency call, auto redial mode.
• Voicemail, SIP SMS.
• Control and configure your phone from the keyboard, via a web interface or remotely.
• Centralized installation, setup, configuration and software update via Autoprovision function (TFTP/FTP/HTTP/HTTPS/PNP/DHCP).
• Support for SNMP v1/2, TR069 protocol (optional).
• Support for Yealink RPS (Redirection and Provisioning Service).
• Special features for BroadSoft, Genesys, etc. platforms.

Network characteristics

• Support for SIP 2.0 protocol (RFC3261).
• IPv6 protocol support.
• Transport: UDP, TCP, TLS, DNS SRV.
• NAT transverse support: STUN mode.
• Call modes: Peer-to-Peer, SIP Proxy.
• 3 network modes: DHCP/static IP/PPPoE.
• OpenVPN support (Attention! This functionality is not available in products intended for the Customs Union countries!).
• Support 802.1x, LLDP.
• Support VLAN (IEEE 802.1p/q tagging), TOS (layer 3).
• Supports in-band DTMF, out-of band RFC2833 DTMF and SIP INFO.
• Support for encryption and identification standards (MD5 and MD5-sess).
• SRTP support (Attention! This functionality is not available in products intended for the Customs Union countries!).
• HTTPS client/server.

Working with voice

• Optima HD audio: HD handset and speakerphone speaker; G.722 HD codec, TIA-920 compliant.
• Sound range from 50Hz to 7kHz.
• Support for wideband codec G.722, support for standard codecs G.711(A/μ), G.726, G.729AB, G.723.1, iLBC (optional), GSM-AMR (optional).
• Supports VAD (Voice Activity Detection), CNG (Comfort Noise Generator), AEC (Echo Cancellation), NLP (Noise Suppression), AGC (Automatic Gain Control), AJB (Adaptive Jitter Buffer).
• High quality speakerphone with echo cancellation.

Physical characteristics

• Color touch 7” LCD screen with a resolution of 800x480 pixels and a color depth of 24 bits.
• Two Gigabit RJ45 ports (Bridge mode).
• USB connector for connecting a Bluetooth adapter.
• Headset jack RJ9 (4P4C).
• RJ12 connector (6P6C) for connecting additional modules and adapters (EXP40, EHS36).
• Possibility of wall mounting.
• Adjustable tilt angle (2 positions).
• Power supply: DC 5V, 2A.
• Supports PoE (Power over Ethernet, 802.3af) Class 3.
• Consumption (DC): 2.4-6.4W.
• Power consumption (PoE): 2.4-10.8W.
• Working temperature: 0°~40°.
• Height: 266mm.
• Width: 226mm.
• Depth: 185mm.
• Thickness: 54mm.
• Weight: 1.087 kg.
• Colour: black.
• Keyboard with Russian and English letters;
• 6 line keys with programmable LEDs;
• 4 context-sensitive, dynamically programmable XML keys;
• 5 navigation keys with reprogrammability;
• Volume control keys
• 6 function keys with reprogrammability: voicemail access, redial, speakerphone, call transfer, headset, mute.