Reference:Configuration/DECT/System

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Note: This information applies to IP1200

The general configuration of the DECT system, as well as the allocation of the DECT system name and password are performed in this submenu.

  • Name: The name of the DECT system. This name determines the name of the LDAP object in which the system parameters are stored. For a replication from an innovaphone PBX, a corresponding object must be created in the PBX.
  • Pwd: The password for the encryption of all passwords in the LDAP database. If the user data from an innovaphone PBX is replicated, the PBX password must be configured.
  • Sys-Mask: Without configuration of a Sys-Mask, the so-called connection handover is always used. With configuration of a Sys-Mask, the faster bearer handover between the DECT base station and the associated DECT repeater can be used.For understanding the Sys-mask and bearer handover please read Howto:Understanding DECT handover with IP1200
  • AC: The access code that must be specified when logging on the DECT handset. This specification is only required if the value With user AC only is selected in the Subscriptions list box.
  • Subscriptions: The type of handset registrations (subscriptions).
    • With User AC only: Subscriptions are allowed that have been configured in the user input screen with specification of an IPEI number and with specification of an authentification code (AC). The specification of the AC is optional and can therefore be blank.
    • Allow Anonymous: Anonymous subscriptions are allowed. The handset logon always takes place with the AC system. The AC entry field can be empty here too.
    • Disable: Subscriptions are not possible.
  • Tones: Various tone schemas can be used here.
  • Enbloc Dialing: A checked check box enables enbloc dialling. This is only required if the gatekeeper or SIP provider does not support single digit dialling.
  • Local R Key/Display Handling: The features of the R key are implemented in DECT systems on relevant VoIP protocols and should always be enabled in the innovaphone PBX.

For the RKey handling features see Howto:How to use the R-key handling on the IP1200 DECT system

  • DTMF through RTP Channel: DTMF data is transmitted via the RTP media channel rather than via the signalling connection (TCP), if this check box is checked.
  • No Transfer on Hangup: A call is being made on a telephone. A second call is received on this telephone (call waiting); the first call is put on hold and the second call is answered. If the second call is ended by replacing the handset, then the first call on hold is signalled specially on this telephone.
    If this check box is checked, then a call on hold is ended.
  • Hold/Retrieve as Notify: If you press 'R' in order to put the remote party on hold, HOLD/RETRIEVE is signalied as notification (SIP/SDP: "a=sendonly" instead of "a=inactive"). It's a compatibility issue for some SIP based PBX's and you will need this option in very rary cases only.
  • No Display of Date and Time: Do not show date and time on the portable's display.
  • Coder: The coder is the type of voice data compression. This coder is used for all external calls. If the remote VoIP device does not support the configured encoding, an encoding supported by both parties is negotiated.
  • Framesize: The packet size/interval of the voice data in ms. Bigger framesize will enlarge delay. Smaller framesize increases network and processing load. Find a compromise that fits your needs and resources.
  • Exclusive: A checked check box enables the selected coder as exclusive. In this way, use of the configured encoding (coder) is forced. This can result in call failure in the event that this device and the remote VoIP device do not support a common coder.
  • Silence Compression: A checked check box enables Silence Compression (SC). In other words, no voice data is transmitted during pauses in the conversation.
  • Enable Secure RTP: A checked check box enables encrypted media streams (SRTP). For perfect privacy you must use encrypted signaling protocol (e.g. SIPS) to hide exchange of SRTP keys.
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