Abstract: A communication system includes a plurality of time division multiplexed (TDM) public switched telephone network (PSTN) trunks, a Signal Control Point (SCP), a Softswitch, and an Internet telephony call controller. The SCP a plurality of phone numbers for time division multiplexed TDM PSTN lines with an Internet telephony feature group that has Internet telephony feature handling. The SCP routes phone calls that are directed to phone numbers in the Internet telephony feature group through at least one dedicated trunk of the PSTN to the Softswitch. The Softswitch routes phone calls that it receives on the dedicated trunk to the Internet telephony call controller for Internet telephony feature handling.

Abstract: A service provider for a communications system may detect new contact information for a contact in the contact database of a first one of the subscribers. The service provider obtains a confirmation of the new contact information by a party other than the first subscriber to confirm accuracy of the new contact information. Responsive to detection of the confirmation event, the service provider stores the confirmed contact information in an aggregate contact database including contact data from multiple ones of the plurality of subscribers. The new contact information may include a communications identifier, such as a telephone number, physical address or network address. The new contact information may further include personal information for the contact, such as a photograph, a profile, a weblog, a buddy list, a bookmark and/or a tag, or commercial information associated with the contact, such as a user rating, an advertisement and/or a coupon.

Abstract: A method of managing security parameters for a communications session includes dynamically assigning security parameters during the communications session responsive to changing aspects of the communications session to provide a variable degree of security for the session. Related systems and computer program products are also discussed.