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System for handling large blocks of special number calls in...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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System for handling large blocks of special number calls in...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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System for maintaining PBX license key information in the...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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System for managing office data in an exchange,...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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System for service control point routing

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling
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System, method and apparatus for least cost automatic...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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System, method and computer program product for achieving...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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System, method and computer program product for achieving...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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Systems and method for providing network element management func

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling
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Systems and methods for integrating PSTN and IP application...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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Systems and methods for managing a numbering plan area split...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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Systems and methods for providing ENUM in an LNP environment

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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Systems and methods for providing voice mail services to...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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Systems and methods for wireless number portability solution...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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Systems and methods to compare operational statuses of...

Telephonic communications – Plural exchange network or interconnection
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Systems and methods using secondary signal backchanneling

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling
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Systems, methods and apparatus for providing a plurality of...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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Systems, methods and articles of manufacture for performing dist

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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