Features and Configuration of SIP Devices

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Revision as of 13:31, 6 June 2013 by PM (talk | contribs) (add restriction 3PCC > step 2)
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OpenScape Business provides its extended, rich feature set with OpenStage HFA phones. Many features are also available for standard SIP phones. The features which have been released for OpenStage SIP phones are:

  • CLIP (Display the call number or name from caller)
  • Consultation (Set the call on hold, phone goes into dial state)
  • Call transfer (Call transfer attended, semi-attended and blind)
  • Call Forwarding (Call Forwarding Unconditional (CFU), Call Forwarding on Busy (CFB) and Call Forwarding on No Response (CFNR) are configurable at SIP phones)
  • Conference (Three-party conference located on the phone, passive member of system conferences)
  • MWI (Notification if call or message is recorded)
  • DND (Call will be rejected)
  • Call waiting (A second call is signaled)
  • Group and Basic / Executive MULAP calls (No group call numbers are displayed, only original caller number)
  • DTMF (Manage voicemail boxes or auto attendant)
  • Distinctive ringing (Different ringtones for internal, external and recall)
  • 3rd-party call control (Useable with 3PCC applications e.g. myPortal or Outlook and OpenScape Business controlled conference, available with V1 Step 2)
  • Call deflect (Forward ringing call to another destination)
  • Call reject


  • System features that are operated via service codes e.g. door opener, speed dialing, directed call pick up or call park cannot be activated or used.
  • Groups: SIP devices cannot perform group call pickup. No MULAP keys are supported for SIP phones. 'Call completed elsewhere' for caller list is supported with the latest OpenStage SIP and HiPath Cordeless IP versions.
  • SIP terminals cannot be used for OpenScape Business contact center agent.
  • An internal SIP phone will hear MoH only, no ringtone, when it is supervised transferred by a second internal party.
  • Device specific features, which are not supported by OpenScape Business, shall be disabled in the device as described in the SIP device configuration guide.
  • No DLI Support (No automatic configuration / SW updates)

Instructions how to administrate OpenScape Business for SIP devices can be found here:
pdf.png  SIP Endpoint Configuration

Please note that only the OpenStage SIP phones and HiPath Cordeless IP devices are officially released and supported.
The other devices below have passed a connectivity test but may not support all possible OpenScape Business features.

Configuration hints and differences in the feature set can be found in the related documents:

SIP Desk Phones

SIP Mobile Devices

SIP Soft Clients

SIP Gateways