Communications adaptor for use with internet telephony system

A method in a communications adaptor comprising:

• receiving at an adaptor first port of the communications adaptor a first setup request signal for an incoming communication carried over an analog communications line;
• generating a second setup request signal for transmission to an Internet Protocol (IP) telephony system over a data network connected to an adaptor second port of the communications adaptor when the setup request signal for the incoming communication is received over the analog communications line;
• generating a third setup request signal for the incoming communication received over the analog communications line for transmission to an adaptor third port of the communications adaptor, the adaptor third port of the communications adaptor being connected to an analog telephony device.

A method of operating an Internet Protocol (IP) telephony system, comprising:

• receiving a setup request signal from a communications adaptor, the setup request signal including an indication that the setup request signal was generated as a result of receipt by the communications adaptor of a setup request signal from a public switched telephony network (PSTN);
• generating an IP-formatted setup request signal to at least one extension telephony device which is registered with the IP telephony system.

The method of 27, further comprising performing a call enhancement service which affects how the IP-formatted setup request signal is sent to the at least one extension telephony device.