Description
Need rock-solid wireless DECT coverage that laughs at rain, dust, freezing cold, or blazing heat? The Snom M900 Outdoor DECT Multicell Base Station is built exactly for that. With its rugged IP55-rated housing, this base station lets you extend professional-grade VoIP telephony to outdoor areas, warehouses, loading docks, campuses, hospitals with grounds, and industrial facilities—without worrying about the weather. It’s technically identical to the trusted indoor M900 but wrapped in a tough, UV-protected, impact-resistant enclosure that keeps your team connected no matter what Mother Nature throws at it.
The Telecom Spot Expert Review
Pros
- True outdoor durability: IP55 + IK08 impact resistance + special coating on electronics for moisture, bacteria, and extreme temps (-20 °C to +60 °C)
- Massive scalability: up to 1,000 bases and 4,000 handsets in one cluster—no separate DECT manager needed
- Seamless roaming and handover across buildings and floors using DECT or LAN sync (IEEE 1588)
- Excellent range: up to 300 m outdoors and 50 m indoors
- Future-proof features: OTA software updates for handsets, alarm server compatibility, beacon support, and wideband audio
- Easy power options: PoE IEEE 802.3af Class 2 or optional 5 V adapter
Cons
- Slightly larger footprint once the protective housing is installed (still wall- or ceiling-mountable)
- Housing adds weight (1.1 kg total) compared to indoor models
Expert Take: If your team spends time outdoors or in semi-exposed areas, the M900 Outdoor eliminates dropped calls and coverage dead zones that plague consumer-grade solutions. Pair it with Snom M-series handsets (M25, M65, M70, M80, M85, M90) and you get enterprise reliability at a fraction of the cost of full Wi-Fi or cellular alternatives. We recommend it for any installation where weather resistance and rock-solid multicell performance are non-negotiable.
Key Features
- IP55-rated weatherproof housing (dust-tight + protected against water jets)
- UV-resistant, impact-resistant (IK08), and specially coated electronics
- Operating temperature -20 °C to +60 °C
- DECT multicell system: up to 1,000 bases / 4,000 handsets (future FW update to 16,000 handsets / 4,000 bases)
- Seamless handover & roaming via DECT or LAN synchronization
- Up to 300 m outdoor range / 50 m indoor range
- Wideband audio with codecs G.711, G.722, G.726, G.729, BV32, Opus (additional codecs enabled via optional A900 DSP module)
- Power over Ethernet (PoE) IEEE 802.3af Class 2 or 5 V DC adapter
- TLS 1.2 & SRTP encryption for secure calls
- Over-the-air (OTA) software updates for handsets
- Local directory (up to 3,000 entries), LDAP, and XML phonebook support
- Integrated DECT manager—no extra hardware required
- Alarm server compatibility and beacon support
- Antenna diversity with 2 internal omni-directional antennas
- Multicolor LED status indicator and dedicated reset key
- Easy web UI configuration with secure provisioning
Technical Specifications
- Part Number: 00004645
- Color: Base station – orange; Housing – light grey
- Dimensions: Base 144 × 140 × 35 mm; Housing 300 × 175 × 80 mm
- Weight: 1.1 kg (with housing)
- Placement: Outdoor / indoor, wall or ceiling mount
- Power: PoE IEEE 802.3af Class 2 or 100–240 V AC to 5 V DC / 2 A adapter (sold separately)
- Ethernet: 10/100 Mbit/s RJ45
- DECT Frequency: Europe 1,880–1,900 MHz / USA 1,920–1,930 MHz
- DECT Output Power: EU < 250 mW / USA < 100 mW
- Calls per base (multicell): Up to 8 narrowband or 4 wideband
- Calls per base (single cell): Up to 10 narrowband or 5 wideband
- Repeaters supported: Up to 100
- Operating Temperature: -20 °C to +60 °C
- Protection: IP55, IK08 impact, UV resistant, UL746C water protected
- Protocols: DHCP, NTP, LLDP-MED, VLAN (802.1q), HTTP/HTTPS, LDAP, TLS 1.2