SIP-DECT - Cordless voice communication over IP networks

SIP-DECT adds the comfort of mobility to VoIP networks, based on two technologies:
  • Voice over IP (VoIP) – Voice is conveyed via an IP data network to an IP radio fixed part.
  • DECT (Digital Enhanced Cordless Telecommunications) Tried and tested technology for conveying voice securely via the air from the IP radio fixed part to the handset
Advantages of using VoIP and DECT together

To enable users enjoy the advantages of using IP networks together with the DECT technology, Aastra has developed radio fixed parts (RFP) with IP interfaces for integrating DECT into IP networks. These radio fixed parts (RFP) are connected to the network like IP terminals. Voice is conveyed via VoIP to the radio fixed part and from the RFP to the air via DECT.

Therefore, employees can always be reached via their call numbers, regardless of whether they are in a branch of the company or at the head office. Using the same IP connections for data and telephony saves additional infrastructure and, thus, costs.

No matter the size and range of the IP network, a single Open Mobility Manager (OMM) is enough to manage all RFPs of the multi-cellular DECT network.

The base stations RFP L43 WLAN and RFP 43 WLAN allow the integration of mobile data transmission via WLAN in parallel using the same network. Central administration of the DECT and WLAN network available via a browser interface.

Feature/SW Release Release 1.8 Release 2.1 Release 3.0 or later
RFP OMM Linux x86 server OMM RFP OMM Linux x86 server OMM RFP OMM Linux x86 server OMM
L-RFP: RFP L32/34 IP and RFP L42 WLAN 256 - 20 - 20 1 -
Standard RFP: RFP 32/34 IP and RFP 42 WLAN - - 256 2 2048 2 256 1, 2 2048 2
L-RFP: RFP L35 IP and RFP L43 WLAN - - - - 20 -
Standard RFP: RFP 35 IP and RFP 43 WLAN - - - - 256 2 2048 2
Handsets / users 512 - 512 4500 512 4500
Message / Alarm receive - - yes / yes 2 yes / yes 2 yes / yes 2 yes / yes 2
Message send - - yes 3 yes 3 yes 3 yes 3
Locating - - yes 2 yes 2 yes 2 yes 2
DECT XQ - - yes yes yes yes
UTF-8 and alphanumeric dialing support - - - - yes yes
SIP–DECT XML terminal API - - - - yes yes
CAT-iq 1.0 / Aastra Hi-Q™ audio technology - - - - yes 4 yes 4

1 There must be at least one RFP L35 IP or RFP L43 WLAN to host the OMM (2nd RFP for OMM standby).

2 The feature requires a license and is not available for L-RFP installations which are using built-in licenses.

3 This feature requires a license for standard RFP installations. There is a built-in license for L-RFP installation.

4 The feature is available with the new RFP (L) 35 IP and RFP (L) 43 WLAN and a CAT-iq-capable handset. The feature is enabled per site and requires that the RFPs are configured in the same site and cluster.

SIP-DECT is particularly suitable for companies which...
  • Already have an existing data network
  • Already use VoIP
  • Have several mobile workers at different locations and do not wish to run a separate PBX for each location.
  • Wish to develop an extensive industrial site with mobile communication, and on which smaller and bigger operating units have to be linked together on a mobile network
  • Wish to have a scalable, future-oriented solution in order to safeguarded the value of their investment for years to come
  • Need a failsafe solution.

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