User`s manual

Version 2.6 53 May 1
MP-202 Telephone Adapter 5. Configuring VoIP Parameters
5.1.8 Configuring Telephone Interfaces
Use the 'Telephone Interface' screen to enable and disable FXS (telephone interface)
parameters.
¾ To configure ''Telephone Interface' settings:
1. Click the tab 'Telephone Interface'; the 'Telephone Interface' screen opens.
Figure 5-18: VoIP - Telephone Interface
2. Check the checkbox 'Enabled' to enable the Polarity Reversal feature. When this
feature is enabled, the FXS polarity is reversed to indicate the start of a VoIP session,
and is reversed back when the VoIP session ends.
Figure 5-19: VoIP - Telephone Interface - NW Map