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Technology Details


  • Supports up to 4K Users and 1K simultaneous calls
  • Interoperable with market leading Call Control and Unified Communications (UC/UCaaS) platforms
  • Supports Redundancy and High Availability when deployed as a load-balancing cluster with automatic failover
  • Provides branch survivability – if connection with host UC/UCaaS platform is lost
  • Modular, scalable & upgradable as capacity & business needs grow
  • Delivers high-quality and secure voice communication
  • Supports DECT Enhanced Security (Encryption)
  • Increases functionality and business efficiency by integrating with Eco-System application partner solutions
  • Maximizes employee availability using simple, reliable, and durable handset devices
  • Single web portal for administration and maintenance
  • 19” rack mounted solution to fit IT infrastructure
  • Allows for Automatic Air or LAN (Local Area Network) Sync

The Spectralink IP-DECT Server 6500 is an ideal Enterprise-grade SIP-enabled mobility solution that can support a large number of staff with DECT wireless telephony, especially for businesses requiring radio coverage over a large geographical area. The IP-DECT Server 6500 solution consists of several different infrastructure elements that can be assembled to exactly match the wireless needs of your business today and to support any future growth demand. This makes the solution an ideal and future-proof choice for mid-to large organizations, enterprises, and fast-growing businesses.

Call Control Protocol Support
• Session Initiated Protocol (SIP)

SIP VOIP Support
• Basic calling
• Caller ID
• Call Hold
• Call Transfer
• Call Waiting
• Music on Hold (MOH)
Note: Additional advanced telephony solution available depending on integration with host SIP-PBX (Call control / UC/UCaaS Platform)

Application Protocols
• XML-RPC API supporting:
– Broadcast Messaging
– Message Service Functions (MSF)
– Task Messages

Supported Codecs
• G.711 A-law and μ-law
• G.726 (32 kbps – 4 bit ADPCM)
• G.729

Operation And Maintenance
• High speed Web GUI for administration and maintenance
• Provisioning, maintenance, and supervision of all infrastructure components and Spectralink DECT handsets in the solution
• HTTP with digest authentication
• Syslog
• SNMP v2

System Architecture
• The Spectralink IP-DECT Server 6500 is a control unit acting as a SIP integration unit to the host SIP Call Control / UC / UCaaS platform, which also controls and handles all other infrastructure elements
• Max. no. of:
– IP-DECT Base Stations: 1024
– Simultaneous calls on each IP-DECT Base Station: 11
– Repeaters on each IP-DECT Base Station: 3
– Media Resources: 32 (each MR supports 32 Channels)
– Simultaneous calls with one Media Resource (G.711): 32
– Simultaneous calls with 32 MR: 1,024
• Registered DECT handsets: scalable to 4,095

• 10/100 Mbps Ethernet port
• Manual or dynamic host configuration protocol (DHCP)
• Time & date sync using Network Time Protocol (NTP)

• System Configuration
• User data
• Server firmware (Software Assurance License required)
• Base station firmware (Software Assurance License required)
• Handset firmware (Software Assurance License required)

Enhanced Provisioning
• The unit can be programmed to download its own configuration and user settings as well as handset firmware and then update the handset firmware based on a programmed
schedule (e.g. upgrade at 03:00).
Note: Scheduled firmware update to all the handsets is accomplished via SUOTA, providing totally automated firmware roll-out support to update IP-DECT Server 6500 and all connected Base Stations & handsets.

Approvals (Regulatory Standards)
• Radio Equipment Directive 2014/53/EU
• Low Voltage Directive 2014/35/EU (CE)
• FCC 47 CFR Part 15

Safety (Regulatory Standards)
• UL62368-1 CAN/CSA-C22.2 No. 62368-1
• IEC 62368-1
• AS/NZS 62368-1
• EN 62368-1
Please check our support site for the latest approvals and regulatory compliance.

Environmental Conditions
• Operating temperature: 50 – 104º F (10 – 40º C)
• Storage temperature: 58 – 158º F (-50 – 70º C)
• Relative humidity: between 20% and 80% (noncondensing)
• The equipment is in compliance with the requirements of EU directive 2011/65/EU (ROHS) and 2012/19/EU (WEEE)

Electrical Requirements
• The supplied power for unit must be 110 to 240 AC nominal, 50/60 Hz

Physical Characteristics
• Size: 17.3 x 7.8 x 1.7 in. (440 x 199 x 44 mm)
• Weight: 83.0 oz (2,354 gr.)
• Grey
• Rack and wall-mountable, indoor
• IP20

• For information about supported Call Control / Unified Communications (UC/UCaaS) (PBX and IP-PBX) platforms, visit

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