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Abbreviated dialing between PBX and Centrex systems using a...

Telephonic communications – Plural exchange network or interconnection – Multi-pbx interconnection
Reexamination Certificate

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Accommodation of two independent telephony systems

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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Active switch replacement using a single point code

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling
Reexamination Certificate

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Adaptive routing control method

Telephonic communications – Plural exchange network or interconnection – Connection call model
Patent

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Adaptive telephone number selection method and system

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

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Additional direct inward dialing connection system

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling
Patent

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Adjunct call handling for accessing adjunct-based capabilities p

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

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Advanced intelligent network (AIN) functionality for...

Telephonic communications – Plural exchange network or interconnection
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Agent-initiated dynamic requeing of misrouted calls in call-rout

Telephonic communications – Plural exchange network or interconnection
Patent

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AIN query redirection

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling
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AIN query redirection

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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AIN to ISDN message mapping for intelligent peripheral...

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling
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Alternate destination call redirection for telecommunications sy

Telephonic communications – Plural exchange network or interconnection – Connection call model
Patent

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Alternate network fallback for IP telephony

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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Alternate routing for calls requiring monitoring

Telephonic communications – Plural exchange network or interconnection – Connection call model
Patent

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Alternative treatment for AIN fault handling

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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Analog dialed digit unlock method and system

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling
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Analog telephone adapter and emergency proxy

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
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Analysis method for provisioning subscribers in a next...

Telephonic communications – Plural exchange network or interconnection
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Anonymous call rejection override

Telephonic communications – Plural exchange network or interconnection
Patent

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