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Your hosts todayMarkus Ehlers Dietmar Steinbrücker
SNOM M700 DECT
Short introduction to DECT Multi-Cell
Understanding Multi-Cell Coverage: 100 m indoor, 300 m outdoor
M700 base stations
Understanding Multi-Cell
Coverage
• 100 m indoor / 300 m outdoor
• Roaming among multiple BS
SIP registrations
• Max. 30 per base station• Distributed
automatically BS
Voice Channels per Base
• Up to 8 concurrent calls (4 HD audio)
100 m100 m
1-30
Max. 1,000
4-8
Max. 200
SIP up to 30 SIP up to
30 SIP up to 30
Up to 30, but we need only one additional handset
Base station calculationHow many BS do you need for 91 handsets?
• SIP Registrations: 91/30 = 3 x 30 + 1 x 30 –> 4 Bases• Best practices for heavy call usage: 8 per Base –> 11
Bases
DECT assessment @ location
Assessment
• Base with local power• Handset in assesment
mode
Assessment Goals
• Redundancy per Base• Coverage approx. -70dB to be safe• Floor to floor , building to building connections• Full air coverage auto-DECT tree
Assessment Do‘s
•Handset / Menu, *IP* (*47*)• Select your base station• 2x Call button for audio loop-back with your base• Look for good reception to two other bases•Direct hall-way coverage (tends to be very far and safe)• floor to floor• Very near Fire safety door / behind elevator / open space backyard
Assessment Dont‘s
•Guess-work base placement – always assess!• Non redundancy radio coverage -80dB• Direct path base station over the air DECT tree• Human bodies coverage reduction• Underestimate concurrent call areas•Multi primary where not necessary
SIP up to 30 SIP up to
30 SIP up to 30
Up to 30
Snom M700 Multi-CellLiving Cell
Up to 1000
…Air sync No Air sync
Over the air syncMandatory for Roaming
• There is sync over LAN, but its limited to max bases-1• In fact, hardly a limit
Multi Primary
Up to 1000
…Primary
LAN sync
More than one data master on the LAN
• The master base stations MUST NOT „see each other“ over the air. This will cause syncronisation chaos within the Multi-Cell installation
Multi PrimaryWhat is necessary to know
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