Description
Yealink SIP‑T56A – Specifications
General
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Model: SIP‑T56A
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Type: Smart media IP phone (touchscreen)
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Operating System: Android 5.1.1
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Screen: 7‑inch capacitive touchscreen, resolution 1024 × 600, multi‑touch
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PoE support: Yes (Power‑over‑Ethernet)
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Dual‑port Gigabit Ethernet (RJ45)
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Built‑in Wi‑Fi (wireless)
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Built‑in Bluetooth 4.0+ (for headset, pairing, etc.)
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USB port (USB 2.0) for headset, storage, accessories
Audio & Voice
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HD voice support (handset and speaker)
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Wideband and narrowband codec support (Opus, G.722, G.711 A/µ, G.729, G.723, G.726, iLBC)
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Full‑duplex speakerphone
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Noise‑proof / noise reduction / acoustic enhancements
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Hearing‑aid compatible (HAC) handset
Phone / Telephony Features
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Up to 16 VoIP / SIP accounts
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Call features: hold, mute, transfer, forward, call waiting, redial, auto‑answer, direct IP calls (without SIP proxy), DND, speed‑dial/hotline
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Call history: dialed, received, missed, forwarded logs
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Phonebook: local directory (up to 1000 entries), remote phonebook via XML/LDAP, phonebook import/export
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Message waiting indicator (MWI), voicemail support, call park/pickup, music on hold, anonymous call/rejection, BLF, BLA, hot‑desking/remote‑office support
Interface & Expandability
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1 × RJ9 handset port
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1 × RJ9 headset port (plus support for Bluetooth / USB headsets)
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Support for expansion modules (color‑screen DSS/BLF modules) — up to 3 modules supported
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Wall‑mountable or desk stand with adjustable stand angles
Network / Protocols / Security
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Supports IPv4 and IPv6
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SIP v1 & v2 support
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NAT traversal (STUN), proxy mode or peer‑to‑peer SIP
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Network protocols: UDP/TCP/DNS‑SRV, HTTP/HTTPS web server, SNTP for time sync
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QoS / VLAN support (802.1p/Q, DSCP/ToS)
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Encryption support: TLS / SRTP, HTTPS for configuration
Other Features
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Built‑in web browser, calendar, recorder and support for additional Android applications (due to Android OS)
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Supports USB media / storage / headset / Bluetooth dongle / Wi-Fi dongle (depending on accessories)
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Customizable soft‑keys, intuitive TOUCH UI
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Local call conferencing (audio) — supported conference participants per phone
