OpenScape DECT Handsets — SL7, S6, R6, M3

OpenScape DECT handsets work with BSIP2 base stations. In IP DECT systems they connect via SIP; in TDM systems via SLMC card. SL7 (slim premium, USB-C), S6 (standard office), R6 (IP65 rugged), M3 (industrial/man-down/ATEX Ex). All models: seamless handover, DECT encryption, 500 phonebook entries, OScAR alarm message reception.

Mitel

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Scope / deliverables

SL7 — slim & premium office handset: slimmest and lightest model, 2.4" TFT 240×320 65K color display, 27 languages, Bluetooth + USB-C, 500 phonebook entries, encrypted voice, secure system logon, OScAR alarm+message reception; multi-system (4 DECT simultaneous); +5°C~+45°C
S6 — standard office handset: 2.4" TFT 240×320 color display (~118g, 2 AAA NiMH batteries), DECT encryption, Bluetooth + Micro USB, OAP message reception, 5-way navigation key; +5°C~+45°C
R6 — rugged handset (IP65): dust and water IP65 certified, rubber-coated back (firm grip), spot LED (incoming call indicator + torch), same feature set as S6 plus extra protection; ~134g, 2 AAA NiMH; +5°C~+45°C
M3 / M3 Plus / M3 Ex / M3 Ex Plus — industrial & safety handset: IP65, shock-proof and shatter-proof, silicon-free housing, EN 6100-6-2 EMI suppression, acoustics optimized for noisy environments; -10°C~+55°C; 1.8" TFT, lithium-ion 1000mAh (~166g)
M3 alarm features — Basic (M3/M3 Ex): emergency call key (short/long press), 3 pre-configured emergency numbers, out-of-range/low battery auto alarm, front LED indicator; Extended (M3 Plus/M3 Ex Plus): deliberate alarms (no-movement, man-down, timed, escape, technical, pull-cord alarm), each alarm type with its own number, OScAR alarm server integration
M3 Ex / M3 Ex Plus — ATEX explosion-proof: gas zone 1 (II 2G Ex ib IIC T4 Gb) and dust zone 21 (II 2D Ex tb IIIC T120°C Db) approved; for oil, gas, chemical facilities; Bluetooth headset only (2.5mm jack, sealed); ATEX directive 2014/34/EC
Common features (all models): multi-system (simultaneous registration to 4 DECT systems), seamless roaming & handover, DECT encryption, ~500 phonebook entries, programmable keys, vibration alarm, OScAR message reception
System connection: via BSIP2 IP base station → SIP in IP DECT systems, via SLMC card in TDM systems — handsets are platform-agnostic, they don't see the platform protocol

Products in This Family

OpenStage M3 Family — Industrial and ATEX DECT Handset

IP65-rated, silver/black-housed DECT handset for harsh industrial environments — 4 variants: Standard, Plus (advanced alarm), Ex (gas/dust hazardous zones), Ex Plus (Ex + advanced alarm). Lone-worker safety, OScAR alarm-server integration, Bluetooth + Mini USB.

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OpenScape DECT Phone R6 — Industrial IP65 DECT Handset

Rugged DECT handset with IP65 protection against water and dust and a rubber-coated back — built for challenging field environments; 2.4" color TFT display, head-area spot LED for incoming calls (doubles as a torch), and a dedicated quick-dial key.

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OpenScape DECT Phone S6 Base — Analog Port DECT Base

DECT base station connecting directly to the analog (a/b) port of HiPath/OpenScape systems. Registers up to 6 handsets, 2 parallel calls (1 internal + 1 external), Eco DECT mode, call transfer and paging. Practical small wireless coverage over a single analog line.

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OpenScape DECT Phone S6 — Premium DECT Handset

Elegant DECT handset with a silver front panel — 2.4" TFT color display, illuminated keypad, and feature set comparable to a system terminal. Bluetooth + Micro USB; multi-cell roaming and encrypted voice.

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OpenScape DECT Phone SL7 — Flagship Slim DECT Handset

Modernization and replacement of the SL6 — Mitel-branded flagship DECT handset bringing SL6's proven functionality into a slim, micro design. 2.4" illuminated TFT color display, liquid-protected keypad, programmable top feature key (short / long press), Bluetooth 5.1 or 3.5 mm wired headset, rechargeable 2 × AAA batteries with long talk time and fast charging.

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