Method and apparatus for providing multiple simultaneous VOIP call sessions for a single directory number
First Claim
1. A method for providing a plurality of separate Voice Over Internet Protocol (VOIP) call sessions for a single North American Numbering Plan (NANP) Directory Number (DN) comprising:
- associating a plurality of IP addresses with a single NANP DN in a lookup table, wherein each IP address corresponds to a different VOIP terminal and all of the VOIP terminals having the same DN for communicating with the PSTN;
a switching center receiving an incoming call from a calling party calling to the NANP DN;
the switching center determining that an existing VOIP call session associated with the NANP DN is in progress;
the switching center identifying another IP address associated with the NANP DN in the lookup table not being used in an existing VOIP call session as an idle IP address;
routing the incoming call over an IP network between the calling party and a called party VOIP terminal having the idle IP address.
8 Assignments
0 Petitions
Accused Products
Abstract
A system and method for providing a plurality of separate Voice Over Internet Protocol (VOIP) call sessions for a single Directory Number (DN). The method includes associating a plurality of IP addresses with a single DN, communicating the association to a Switching Center responsible for routing calls between the DN and the Public Switched Telephone Network (PSTN), determining that an existing VOIP call session associated with the DN is in progress, and creating another separate simultaneous VOIP call session for the DN. A communications system includes a switching center receiving an association between a plurality of IP addresses and a single DN for providing a plurality of separate simultaneous VOIP call sessions for the DN.
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Citations
14 Claims
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1. A method for providing a plurality of separate Voice Over Internet Protocol (VOIP) call sessions for a single North American Numbering Plan (NANP) Directory Number (DN) comprising:
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associating a plurality of IP addresses with a single NANP DN in a lookup table, wherein each IP address corresponds to a different VOIP terminal and all of the VOIP terminals having the same DN for communicating with the PSTN; a switching center receiving an incoming call from a calling party calling to the NANP DN; the switching center determining that an existing VOIP call session associated with the NANP DN is in progress; the switching center identifying another IP address associated with the NANP DN in the lookup table not being used in an existing VOIP call session as an idle IP address; routing the incoming call over an IP network between the calling party and a called party VOIP terminal having the idle IP address. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for providing a plurality of separate Voice Over Internet Protocol (VOIP) call sessions for a single North American Numbering Plan (NANP) Directory Number (DN) comprising:
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associating a plurality of IP addresses with a single NANP DN in a lookup table, wherein each IP address corresponds to a different VOIP terminal and all of the VOIP terminals having the same NANP DN for communicating with the PSTN; communicating the association to a Switching Center responsible for routing calls between the NANP DN and the Public Switched Telephone Network (PSTN); determining that an existing VOIP call session associated with the NANP DN is in progress; and creating another separate simultaneous VOIP call session for the NANP DN. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A communications system for providing a plurality of separate Voice Over Internet Protocol (VOIP) call sessions for a single North American Numbefinci Plan (NANP) Directory Number (DN) comprising:
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a database having a plurality of IP addresses associated with a single NANP DN, wherein each IP address corresponds to a different VOIP terminal and all of the VOIP terminals having the same NANP DN for communicating with the PSTN; and a Switching Center responsible for routing calls between the DN and the Public Switched Telephone Network (PSTN) communicating with the database for establishing a plurality of separate simultaneous VOIP call sessions for the NANP DN.
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Specification