Limiting spend or access to your telephony service
If you are a voice customer, you may restrict your service in the following ways:
Block International Calling
Block all outbound calls
Disable a telephone handset (VoIP Only)
Restrict a telephone handset to work from a particular IP address only (VoIP Only)
Limit a handset to only dial particular numbers (VoIP Only)
Restrict a SIP trunk to only make/receive calls…