Polycom 400 - Manual (Page 120)

Polycom Telephone User Guide Set Up Outlook for TAPI 113
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16. Click OK in the VocalData VOISS dialog box to return to the
Phone and Modem Options dialog box.
17. Check to be sure that the Providers field now includes the
VocalData VOISS Telephony Service Provider (circled).
18. Click Close in the Phone and Modem Options dialog box.
Windows is now configured to allow users to make calls from their
contacts, but the TAPI-enabled program must be configured to use
the VocalData line for dialing. For information on configuring the
program to use the PressOne telephone line for dialing, go
to“Application Configuration for Using TAPI” on page 160..