- PC client applications The ports in the PC Client group must allow outgoing calls. You need to set up the port group usage on the Usage tab.
- Telephone user interface The ports in the Telephone User Interface group must allow incoming calls. You need to set up the port group usage on the Usage tab.
- Call Me The ports in the Call Me group must also be in the Telephone user interface port group. You must set up the port group usage on the Usage tab.
- Fax The ports in the Fax group are used for outgoing faxes. You need to set up the port group usage on the Usage tab.
- MWI The ports in the MWI group are used with inband integration, IP H.323 integration, QSIG or set emulation. You configure the port group in the MWI Settings dialog box.
For more information on configuring port groups for inband integration, see Configuring message waiting indicator (MWI).
