138 Voice API Programming Guide — June 2005
Caller ID
11.4 Enabling Channels to Use the Caller ID Feature
During Intel Dialogic System Service startup, before the initial use of caller ID functions, the
application must enable the caller ID feature on the channels requiring caller ID.
On Springware boards, caller ID is enabled by setting the DXCH_CALLID channel-based
parameter to DX_CALLIDENABLE using dx_setparm(). The default setting is caller ID
disabled, DX_CALLIDDISABLE. Caller ID on DM3 boards is available via the Global Call API.
For more information, see the Global Call Technology User’s Guide for your technology.
11.5 Error Handling
When the caller ID function completes, check the return code:
•If the caller ID function completes successfully, the buffer will contain the caller ID
information.
•If the caller ID function fails, an error code will be returned that indicates the reason for the
error. The call is still active when the error is returned.
When using the dx_gtextcallid() function, error codes depend upon the Message Type ID
argument (infotype) passed to the function. All Message Types can produce an EDX_CLIDINFO
error. Message Type CLIDINFO_CALLID can also produce EDX_CLIDOOA and
EDX_CLIDBLK errors.
When using the dx_gtcallid() caller ID function, if an error is returned indicating that the caller’s
phone number (DN) is blocked or out of area, other information (for example, date or time) may be
available by issuing the dx_gtextcallid() caller ID function. The information that is available,
other than the caller’s phone number, is determined by the CO.
11.6 Caller ID Technical Specifications
For information about caller ID technical specifications, contact the appropriate authority and
request the technical references you require:
CLASS
CLASS documents are published by Telcordia Technologies (previously Bellcore). To obtain a
copy of these technical references, call 1-800-521-2673 (from the U.S. and Canada) or +1-
732-699-5800 (worldwide), or visit http://www.telcordia.com. Note that Bellcore is now
known as Telcordia Technologies.
•TR-NWT-000031 (issue 4) CLASS Feature Calling Number Delivery
•TR-NWT-001188 CLASS Feature Calling Name Delivery Generic Requirements
•TR-NWT-000030 (issue 2) Voice Data Transmission Interface Generic Requirement
ACLIP
Contact the Telecommunications Authority of Singapore and Telcordia Technologies.
•TAS TS PSTN1 A-CLIP: 1994