The following settings can be configured in the dial-in conferencing section:
Provider name. This enables you to choose your audio conferencing provider from the list. At the time of this writing, the available providers include:
o Intercall
o BT Conferencing
o PGi
Toll number and toll-free number. These are the phone numbers supplied to you by the audio conferencing provider. The numbers you enter here appear in the same format in Lync Meeting requests. The toll number is a required setting, but the toll-free number is optional.
Passcode. This is the code that meeting participants enter when they join meetings scheduled by this
particular user