Difference between revisions of "OpenScape Business Interfaces"

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Overview

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

For access to Telefony Function serveral protocols and API´s are available

• CSTA protocol
• WebService Interface protocol
• Call Data Records Interface protocol
• First and third party TAPI Telephony Service Providers

Interface descriptions of this site refer to OpenScape Buisness V1.

Physical interfaces

• LAN Ethernet 10/100 base T
• Upo E(OpenScape Office X3,X5 and X8)
• S0 / S2m (OpenScape Office X3,X5 and X8)
• a/b (OpenScape Office X3,X5 and X8)

Protocols

Web Services Interface (HTTP / HTTPS)

The realization of the HTTP(S) protocol is done by the WebServices.

The WebServices are fully integrated into HiPath OpenScape Business V1 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 Business.

CSTA protocol

The CSTA protocol enables the connection of high-performance CTI, Contact Centre and Unified Communication applications etc. to OpenScape Business. It supports:

• Access via Ethernet LAN (TCP / IP)
• CSTA Phase III ASN.1 encoded by:
  • ECMA-269 Services for Computer Supported Telecommunications Applications (CSTA) Phase III
  • ECMA-285 Protocol for Computer Supported Telecommunications Applications (CSTA) Phase III* Wide range of system telephones
• Network-wide monitoring and control of all resources
• Multiplexing of monitor points

Differences between OpenScape Business CSTA and HiPath 3000 CSTA implementation

The CSTA implementation of OpenScape Business V1 has been refined. Regarding to the HiPath 3000 implementation the following has to be considered.

General modifications

• Physical access
  • CSTA protocol is available exclusively via Ethernet LAN connection
  • Access via port 8800 (per default).
  • RS 232 and S0 interfaces are no longer supported.
• Interface enabling
  • CSTA Interface is disabled per factory default. It has to be enabled explicitly before use.
  • CSTA Login credentials have to be configured individually.*
• Interface configuration
  • CSTA Plus products flags are set fixed to
  • Dial prefixes are always transferred with the call number
  • Enhanced CSTA-CAUSE handling is always active
  • CSTA CSP signaling is always active
  • MULAP Monitoring is always active
  • CTI Networking always active
  • Open Scape Contact Center Flag is always inactive.
  • Modification of flags via system administration is no longer supported.
    

Capacities

• Max. 4 CSTA links are available for “external” applications.

Within factory default one CSTA link is always available.3 additional CSTA links can be enabled optionally, if not used by embedded applications of the system.

Protocol Modifications

• No longer support of CSTA Phase II protocol version
• Service enhancements regarding:
  • Configuration data
  • Networking

Networking

• Native support of networked systems of the same SW version. HiPath 5000 RSM and CSP are no longer required

Prerequisites

• “UC-Booster Card” or “UC-Booster Server” is required for use of the CSTA interface

Please note
It is strongly recommended to re-test applications which have been developed for HiPath 3000 in combination with OpenScape Business.

CSTA interface manual

The CSTA interface manual of OpenScape Business consists out of 4 parts, which are zipped together into one file.

Part 1
Part 2
Part 3
Part 4

Proprietary protocol for CDR-Transmission

OpenScape Business 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 Protocol)

SIP is physically available at the Ethernet LAN-Interface. Implementations is done according to the following RFC:

• VoIP overSIP
  • 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.

Application Interfaces

Microsoft TAPI

Many CTI and CRM applications on the market use the Microsoft TAPI interface for connecting to the telephone system. With OpenScape Business TAPI 120 V1 and OpenScape Business TAPI 170 V1, two new and powerful TAPI Service Providers (TSP), which are optimized for the system architecture and network topology of OpenScape Business, are now available for connecting TAPI-based applications in addition to the CallBridge Collection.

The choice of the appropriate TAPI Service Provider essentially depends on the number of client PCs to be connected with TAPI applications as well as the existing IT infrastructure and the phone devices used.

• OpenScape Business TAPI 120
  

is used as the preferred first-party TAPI Service Provider in Microsoft networks with or without a domain controller when analog, Cordless and system devices without IP/USB interfaces are also to be operated in conjunction with TAPI applications. The TAPI 120 Service Provider is installed on each PC client that is running a TAPI application. Connections via TAPI 120 are subject to licensing within OpenScape Business. To connect to OpenScape Business, only one CSTA link is required, regardless of how many TAPI 120 clients are being operated.

• OpenScape Business TAPI 170
  

is a classic "third-party" TAPI Service Provider that is installed on a server on the LAN and connected centrally to the OpenScape Business System. TAPI 170 can be used as an alternative to TAPI 120 if there is a domain controller in the Microsoft network. When using the so-called remote TAPI function, it is not necessary to install the TAPI Service Provider on the client PCs. This offers significant time savings in installations with many client PCs.
Please note, however, that the use of OpenScape Business TAPI 170 is mandatory in the following constellations:

• Connection of TAPI stations in networked OpenScape Business systems when the TAPI stations are located in different nodes.
• Connection to TAPI applications running on a terminal server
• Connection to server-based TAPI applications

OpenScape Business TAPI 170 is subject to licensing within OpenScape Business. To connect to OpenScape Business, one CSTA link is required, regardless of how many TAPI 170 stations are being operated.

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.