Lotus Sametime Unified Telephony provides a standard European Computer Manufacturers' Association (ECMA) Computer Supported Telecommunications Applications (CSTA) protocol interface to external CTI applications, which permits applications such as Telephony Application Server, and Lotus Sametime to control the Lotus Sametime Unified Telephony SIP endpoints. It also describes other Lotus Sametime Unified Telephony capabilities relevant to applications that utilize the CSTA interface.
CSTA Protocol Interface
This feature provides a CSTA protocol interface to applications, that support the ECMA standard.
CSTA Protocol Interface provides the ability to control and monitor telecommunication activities on SIP endpoints.
CSTA Services Support
Lotus Sametime Unified Telephony supports a list of standard CSTA services. These services are also applicable to unified number call control support, with the exception of the following categories:
Capability exchange services
System registration services
System status services
Application Populated Caller ID
CSTA-enabled ACD (Automatic Call Distribution) applications (for example, Lotus Sametime Contact Center) can supply the information necessary to change the callback number provided to the called party on a dynamic basis. This ability complies with United States Federal Communications Commission (FCC) regulations that require telemarketing agents to provide a name and dialable callback number when they make outbound calls.
CSTA-enabled applications use the data synchronization feature.
When subscribers are created, modified, or deleted, Telephony Control Server Assistant generates a log file with the XML stream for subscribers registered for the relevant external application (for example, Lotus Sametime ComAssistant). This file is transferred on a daily basis to the CAP server. At a predetermined time during the night, CAP runs a script to import the file and update its database.
Flexible Digit Processing
The flexible digit processing capability can be used on all calls originated from CSTA-enabled applications, including the Make Call, Consultation Call, and Deflect Call messages.
Integration with Fault Management
An internal mechanism is available to send SNMP traps and notifications and to integrate this information seamlessly into Fault Management.
Message Waiting Indicator
Lotus Sametime Unified Telephony allows for a CSTA-monitored device to report MWI changes to the monitoring application.
Multiple Time Zone Support
The CAP supports time zone information as delivered by the system database regardless of zone or location.
Lotus Sametime Unified Telephony's multiple time zone support capabilities ensure that the correct date and time information is used.
Unified Number service
is a licensed subscriber mobility service that is based on CSTA services. It is possible to provision CSTA Access and unified number Inbound/Outbound for a subscriber that does not have a registering device. Refer to the table below for supported CSTA services and events for unified number – IO subscribers.
Lotus Sametime Unified Telephony-Provided Calling Name
Lotus Sametime Unified Telephony provides the calling name via the call monitoring events to the CSTA-enabled application. This calling name is only presented to the application user if the external directory does not match an entry for the subscriber's DN.
Private Network Number Support
The CSTA interface has the capability to recognize and send private network numbers and other non-DID numbers in device IDs. This includes supporting private network numbers used in the OND (one number service device) tag portion of the device ID. Because of this, a subscriber home DN can be provisioned as DID (with national and international numbers) or non-DID.