OpenScape Office LX/MX V3 Open Interfaces

OpenScape Office LX/MX offers different types of Open Interfaces which can be used for integration of OpenScape Office LX/MX features into applications and IT landscapes.

Physical interfaces

 * LAN Ethernet 10/100 base T
 * USB (OpenScape Office MX only)
 * S0 / S2m (OpenScape Office MX only)
 * a/b (OpenScape Office MX only)

Web Services Interface (HTTP / HTTPS)
The realization of the HTTP(S) protocol is done by the WebServices. From OpenScape Office MX/LX V3 on the WebServices replaces the G-Server. The function set comprises nearly all function of the G-Server except EVM support but offers also additioninal feature like access to user presence status.

The WebServices are fully integrated into HiPath OpenScape Office LX/MX V3 software. No SW download and no external PC are required for use of the WebServices. Administration is done by Web Based Administration (WBM) of OpenScape Office LX/MX V3

CSTA protocol
CSTA protocol implementation is based on following ECMA recommendations:


 * ECMA-269 Services for Computer Supported Telecommunications Applications (CSTA) Phase III
 * ECMA-285 Protocol for Computer Supported Telecommunications Applications (CSTA) Phase III

The CSTA interface of Open Scape Office LX/MX is licensed per CSTA link.

Physically it is available on Ethernet LAN 10/100 base T interface with TCP/IP. Default IP address is 192.168.1.2 (OpenScape Office MX only). Default port number is 8800.

OpenScape Office LX/MX specific CSTA implemtation is described within:

Proprietary protocol for CDR-Transmission
OpenScape Office LX/MX collects data about outbound (incoming and outgoing) calls within an internal file.

This file can be transmitted via Ethernet LAN to external computers. To avoid inconsistencies by multiple transmission of the same file, the file should be deleted after transmission. More information about the handling, link establishing and the call data record content is given within the following document. An asynchonous transfer of single data records, as HiPath 3000 does, is not supported by OpenScape Office LX/MX.

SIP (Session Initiation Protokoll)
SIP is physically available at the Ethernet LAN-Interface. Implementations is done according to the following RFC:


 * VoIP über SIP
 * RFC 2198 RTP Payload for Redundant Audio Data
 * RFC 2327 SDP Session Description Protocol
 * RFC 2617 HTTP Authentication: Basic and Digest Access Authentication
 * RFC 2782 DNS RR for specifying the location of services (DNS SRV)
 * RFC 2833 RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
 * RFC 3261 SIP Session Initiation Protocol
 * RFC 3262 Provisional Response Acknowledgement (PRACK) Early Media
 * RFC 3263 SIP Locating Servers
 * RFC 3264 An Offer/Answer Model with the Session Description Protocol
 * RFC 3310 HTTP Digest Authentication
 * RFC 3311 Session Initiation Protocol (SIP)UPDATE Method
 * RFC 3323 A Privacy Mechanism for the Session Initiation Protocol (SIP)
 * RFC 3325 Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks
 * RFC 3326 The Reason Header Field for the Session Initiation Protocol (SIP)
 * RFC 3489 STUN - Simple Traversal of User Datagram Protocol (UDP)Through Network Address Translators (NATs)
 * RFC 3515 The Session Initiation Protocol (SIP) Refer Method
 * RFC 3550 RTP: Transport Protocol for Real-Time Applications
 * RFC 3551 RTP Profile for Audio and Video Conferences with Minimal Control
 * RFC 3581 An Extension to the Session Initiation Protocol (SIP) for Symmetric Response Routing
 * RFC 3891 The Session Initiation Protocol (SIP) Replaces Header

SIP protocol is available at subscriber lines and at trunk lines. For interoperability with VoIP Providers (SIP trunking) see Collaboration with VoIP Providers.

Microsoft TAPI
OpenScape Office LX/MX provides three TAPI service providers (TSP) for implementation in Microsoft TAPI based applications:


 * HiPath TAPI 170 TSP (3rd party)
 * HiPath TAPI 120 TSP (1st party)
 * CallBridge Collection (1st party for openStage Phones)

TAPI 120 and 170 is connected to OpenScape Office LX/MX via LAN interface. Callbridge Collection is connected directly to OpenStage phones using USB or LAN interface.

Manufacturer specific implementations are described within these documents.