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CTI (Computer Telephony Integration) Link Feature

Considerations and Constraints

Private Network Operation

Operation for non-local extension calls in CTI-linked CentreVu Telephony Services applications depends upon the application implementation as well as the type of private networked trunk (PRI, analog tie, or T1 tie) that carries calls between the systems, according to the following rules:

• If the application does not strip leading zeros, the client displays the ANI information with any leading zeros needed to make the information seven digits long.
  
• If the application strips leading zeros, the recipient client displays the ANI information in its original length. The call displays as an inside or outside call, depending on whether ANI information or a trunk identifier in the delivered event is used to the differentiate the call.

If the non-local dial plan recipient of a transfer or conference call is a client, the recipient's display shows caller information about the conference or transfer originator, not about any other caller. A client display does not provide an indication when a conference participant is dropped.

A call may come in from the PSTN to an Automated Attendant, such as MERLIN Messaging, that collects digits from the caller (a customer number, for example). If the application then sends the call to a non-local client, the collected digits do not trigger screen pop at the recipient display, regardless of the type of trunks over which the call is routed.

If a call that has collected digits associated with it is answered and then transferred, the collected digits do not transfer to a non-local client, regardless of the facility.

Topics
	Description
	Platform Requirements Screen Pop Collected Digits Power Dial Basic Call Control Programming a CTI Link
	At a Glance
	Considerations & Constraints
	Private Network Operation
	System Programming
	Mode Differences
	Telephone Differences
	Feature Interactions