System and method for routing calls using a universal access phone number

A system for routing a call from a calling party made to a called party Universal Access Phone Number (UAPN) in a telecommunications network comprising:

• an originating switch serving the calling party receiving a call destined for the called party;
• and
• a Service Control Point (SCP) connected to the originating switch via an SS7 network, the SCP having a UAPN database including different time/day phone numbers for specific times of the day and/or days of the week corresponding to the same called party UAPN the time/day phone numbers including a first time/day phone number corresponding to a first time period and a first day, the UAPN database further including an override phone number for the first time period and first day, the override phone number being different than the first time/day phone number UAPN, wherein the SCP receives a UAPN resolution query from the originating switch during the first time period and first day, determines that the called party phone number is in a UAPN database, selects the override phone number for a destination phone number based on the time the call is made and the day the call is made, and returns the destination phone number to the originating switch via the SS7 network for enabling the originating switch to route the call to the called party terminal using the destination phone number.