US Patent No: 7,068,594

Number of patents in Portfolio can not be more than 2000

Method and apparatus for fault tolerant permanent voice calls in voice-over-packet systems

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Abstract

A Multiservice Access Concentrator (MAC) is provided that provides fault tolerant permanent voice calls in a voice over packet-data-network system (VOPS). The MAC sets up at least one permanent voice call by coupling a number of nodes in series using a voice-over-packet protocol and a set of primary connection bindings. Furthermore, at least one set of alternate connection bindings are defined for the permanent voice call. At least one preference-based list is generated comprising the sets of alternate connection bindings. Each node operating with the voice-over-packet protocol is capable of determining at least one out-of-service state for the node. A failure of at least one of the series nodes is detected by the node. A reconnection relationship is established between nodes on either side of a node determined to be out of service. The permanent voice call connection is automatically re-established or reconnected using at least one alternate node. The permanent voice call of an embodiment is transmitted over a Frame Relay network in accordance with a standard comprising a Frame Relay Forum FRF.11 Implementation Agreement.

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First Claim

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CISCO TECHNOLOGY, INC.SAN JOSE, CA9213

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tasker, Michael Pleasanton, CA 13 100

Cited Art

Patent Info (Count) # Cites Year
 
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Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
CISCO TECHNOLOGY, INC. (6)
7,339,924 Method and apparatus for providing ringing timeout disconnect supervision in remote telephone extensions using voice over packet-data-network systems (VOPS) 4 1998
7,319,667 Communication system with priority data compression 13 2000
7,299,176 Voice quality analysis of speech packets by substituting coded reference speech for the coded speech in received packets 2 2002
7,436,767 Method and apparatus for controlling the transmission of cells across a network 1 2002
7,245,630 Method and apparatus for routing integrated data, voice, and video traffic 7 2003
8,126,009 Method and apparatus for providing ringing timeout disconnect supervision in remote telephone extensions using voice over packet-data-network systems (VOPS) 0 2007
 
CIENA CORPORATION (2)
7,443,831 Call control using a layered call model 1 2003
8,300,625 Call control using a layered call model 0 2008
 
AVAYA INC. (1)
7,983,148 Disaster recovery via alternative terminals and partitioned networks 0 2004
 
NOKIA SIEMENS NETWORKS GMBH & CO. KG (1)
7,885,389 Method for controlling announcements and interactive responses in an exchange 0 2001
 
VERIZON BUSINESS GLOBAL LLC (1)
8,219,622 Systems and methods for providing extended peering 1 2005

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 27, 2013
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 27, 2017
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00