Method and apparatus for access to dialing plans for users of distinct enterprise networks

A computer readable medium storing a software program, that, when executed by a computer, causes the computer to perform a method comprising:

• receiving at least one dialing plan request from a first network endpoint in a first enterprise customer network for accessing a second network endpoint in a second enterprise customer network;
• retrieving at least one dialing plan mapping in response to said at least one dialing plan request, wherein said at least one dialing plan mapping is formed by mapping a first address mapping to a second address mapping, wherein said first address mapping is associated with said first enterprise customer network and said second address mapping is associated with said second enterprise customer network;
• and
• responding to said at least one dialing plan request using said at least one dialing plan mapping.

An apparatus for initiating at least one call request from a first enterprise customer network to a second enterprise customer network, comprising:

• means for receiving at least one dialing plan request from a first network endpoint in said first enterprise customer network for accessing a second network endpoint in said second enterprise customer network;
• means for retrieving at least one dialing plan mapping in response to said at least one dialing plan request, wherein said at least one dialing plan mapping is formed by mapping a first address mapping to a second address mapping, wherein said first address mapping is associated with said first enterprise customer network and said second address mapping is associated with said second enterprise customer network;
• and
• means for responding to said at least one dialing plan request using said at least one dialing plan mapping.