Call flow system and method for use in a VOIP telecommunication system

• US 10,375,616 B2
• Filed: 04/03/2018
• Issued: 08/06/2019
• Est. Priority Date: 03/02/2006
• Status: Active Grant

• Current Assignee: Tango Networks Incorporated
• Original Assignee: Tango Networks Incorporated
• Inventors: Silver, Andrew, Lewis, Lathan, Landgren, Patricia
• Primary Examiner(s): Chery, Dady
• Application Number:
  US15/944,481
• Publication Number:
  US 20180227825A1
• Time in Patent Office: 490 Days
• Field of Search: 370331, 370329, 370341, 370352, 370351, 370467, 379229, 379225, 379231, 379232, 379234
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 65/00 Network arrangements, protocols or services for supporting real-time applications in data packet communication real-time or near real-time messaging, e.g. instant messaging [IM] H04L51/04; selective video distribution H04N21/00
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 65/102 Gateways arrangements for connecting between networks having differing types of switching systems, e.g. gateways, H04L12/66
• CPC Class Codes: H04L 65/1023 Media gateways
• CPC Class Codes: H04L 65/1033 Signalling gateways
• CPC Class Codes: H04L 65/104 in the network
• CPC Class Codes: H04L 65/1053 IP private branch exchange [PBX] functionality entities or arrangements circuit switched PBXs H04M3/00
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1076 Screening of IP real time communications, e.g. spam over Internet telephony [SPIT]
• CPC Class Codes: H04L 65/1095 Inter-network session transfer or sharing
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 65/1106 Call signalling protocols; H.323 and related
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04M 15/00 Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
• CPC Class Codes: H04M 15/57 for integrated multimedia messaging subsystem [IMS]
• CPC Class Codes: H04M 15/63 based on the content carried by the session initiation protocol [SIP] messages
• CPC Class Codes: H04M 15/8292 Charging for signaling or unsuccessful connection
• CPC Class Codes: H04M 2203/1091 Fixed mobile conversion
• CPC Class Codes: H04M 2215/208 : IMS, i.e. Integrated Multimedia messaging Subsystem
• CPC Class Codes: H04M 3/42042 : Notifying the called party of information on the calling party details within substation equipment H04M1/57, signalling details H04Q3/72
• CPC Class Codes: H04M 3/42068 : where the identifier is used to access a profile
• CPC Class Codes: H04M 3/42102 : Making use of the called party identifier
• CPC Class Codes: H04M 3/42314 : in private branch exchanges
• CPC Class Codes: H04M 7/006 : Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04M 7/0075 : Details of addressing, directories or routing tables
• CPC Class Codes: H04M 7/009 : in systems involving PBX or KTS networks
• CPC Class Codes: H04Q 2213/13034 : A/D conversion, code compression/expansion
• CPC Class Codes: H04Q 2213/1307 : Call setup
• CPC Class Codes: H04Q 2213/13091 : CLI, identification of calling line
• CPC Class Codes: H04Q 2213/13098 : Mobile subscriber
• CPC Class Codes: H04Q 2213/13109 : Initializing, personal profile
• CPC Class Codes: H04Q 2213/13176 : Common channel signaling, CCS7
• CPC Class Codes: H04Q 2213/1318 : Ringing
• CPC Class Codes: H04Q 2213/13196 : Connection circuit/link/trunk/junction, bridge, router, gateway
• CPC Class Codes: H04Q 2213/13204 : Protocols
• CPC Class Codes: H04Q 2213/1322 : PBX
• CPC Class Codes: H04Q 2213/13224 : Off-net subscriber, dial in to/out from network, teleworking
• CPC Class Codes: H04Q 2213/13296 : Packet switching, X.25, frame relay
• CPC Class Codes: H04Q 2213/13348 : Channel/line reservation
• CPC Class Codes: H04Q 2213/13384 : Inter-PBX traffic, PBX networks, e.g. corporate networks
• CPC Class Codes: H04Q 2213/13389 : LAN, internet
• CPC Class Codes: H04Q 2213/13405 : Dual frequency signaling, DTMF
• CPC Class Codes: H04Q 2213/13407 : Detection of data transmission mode
• CPC Class Codes: H04Q 3/0025 : Provisions for signalling
• CPC Class Codes: H04Q 3/0045 : involving hybrid, i.e. a mixture of public and private, or multi-vendor systems
• CPC Class Codes: H04Q 3/62 : for connecting to private branch exchanges
• CPC Class Codes: H04Q 3/72 : Finding out and indicating number of calling subscriber
• CPC Class Codes: H04W 28/0289 : Congestion control load shedding arrangements in network planning H04W16/08; performing reselection for handling the traffic H04W36/22; wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 4/16 : Communication-related supplementary services, e.g. call-transfer or call-hold
• CPC Class Codes: H04W 4/20 : Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
• CPC Class Codes: H04W 40/00 : Communication routing or communication path finding
• CPC Class Codes: H04W 40/02 : Communication route or path selection, e.g. power-based or shortest path routing
• CPC Class Codes: H04W 40/22 : using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
• CPC Class Codes: H04W 40/30 : for proactive routing
• CPC Class Codes: H04W 76/10 : Connection setup
• CPC Class Codes: H04W 76/12 : Setup of transport tunnels
• CPC Class Codes: H04W 76/19 : Connection re-establishment
• CPC Class Codes: H04W 76/20 : Manipulation of established connections
• CPC Class Codes: H04W 76/22 : Manipulation of transport tunnels
• CPC Class Codes: H04W 76/28 : Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 76/30 : Connection release
• CPC Class Codes: H04W 8/12 : between location registers or mobility servers
• CPC Class Codes: H04W 8/26 : Network addressing or numbering for mobility support
• CPC Class Codes: H04W 80/00 : Wireless network protocols or protocol adaptations to wireless operation
• CPC Class Codes: H04W 84/16 : WPBX [Wireless Private Branch Exchange]
• CPC Class Codes: H04W 88/16 : Gateway arrangements
• CPC Class Codes: H04W 92/02 : Inter-networking arrangements
• CPC Class Codes: H04W 92/06 : between gateways and public network devices
• CPC Class Codes: H05K 999/99 : dummy group

Abstract

A method of establishing a communication link between a mobile terminal of a wireless network and a subscriber of a network, such as an enterprise network, and/or a residential network.

Claims

1. A method, comprising:

receiving, at a private branch exchange (PBX), an instruction to route a call to a phone associated with a mobile station;

establishing a fork, by the PBX, to route the call to the phone and to an enterprise gateway server;

routing, by the enterprise gateway server, the call to a carrier network;

notifying, by the enterprise gateway server, the private branch exchange that the mobile station is ringing; and

cancelling, by the private branch exchange, the call to the phone responsive to receiving an indication that the call was answered at the mobile station.

2. The method of claim 1, further comprising:

transmitting, by the private branch exchange, a first call invite message to the enterprise gateway server;

transmitting, by the private branch exchange, a second call invite message to the phone;

forwarding, by the enterprise gateway server, the first call invite message to a carrier gateway server; and

establishing a secure tunnel between the enterprise gateway server and the carrier gateway server.

3. The method of claim 2, further comprising performing, by the carrier gateway server, a location request.

4. The method of claim 3, further comprising receiving, by the enterprise gateway server, a temporary routing number required to deliver the call to the mobile station.

5. The method of claim 2, further comprising forwarding, by the carrier gateway server, a temporary routing number to the enterprise gateway server.

6. The method of claim 2, further comprising cancelling, by the private branch exchange, a call leg associated with the second call invite message to the phone.

7. The method of claim 2, further comprising receiving, by the carrier gateway server, a termination trigger indicating that the call has been terminated to a mobile number of a second mobile station of an enterprise network member.

8. The method of claim 7, further comprising:

issuing, by the carrier gateway server, a request to the enterprise gateway server for a termination policy; and

receiving, by the carrier gateway server, the termination policy.

9. The method of claim 8, further comprising rerouting, by the carrier gateway server, the call into an enterprise network for call handling.

10. The method of claim 1, further comprising receiving, by the private branch exchange, a call origination request of the call destined to a member having the mobile station and the phone communicably coupled to the private branch exchange.

11. The method of claim 1, further comprising receiving, by the enterprise gateway server, an indication that the mobile station is ringing.

12. The method of claim 1, further comprising inserting, by the enterprise gateway server, a media port into a call path allocated for the call, and allocating, by the enterprise gateway server, the media port for insertion into the call path.

13. The method of claim 1, further comprising receiving, by the enterprise gateway server, an indication that the call has been answered at the mobile station.

14. A method, comprising:

receiving a call origination request at a carrier gateway server to route a call initiated from a user device destined for an end user device;

querying, by the carrier gateway server, an enterprise gateway server to identify a policy used to route the call;

receiving, by the enterprise gateway server, a request to route the call to the end user device based on the policy;

designating, by the enterprise gateway server, a media server to route the call;

routing the call to the media server;

establishing a bearer path to support the call; and

transmitting a ringing indication via the bearer path.

15. The method of claim 14, wherein a voice over the Internet (VoIP) protocol is used by the media server to route the call.

16. The method of claim 14, further comprising routing the call from the media server to a private branch exchange via the enterprise gateway server.

17. The method of claim 14,

wherein the ringing indication is transmitted from the end user device to the user device via the bearer path.

18. The method of claim 17, further comprising:

establishing a media path controlled by the enterprise gateway server that is separate from the bearer path that operates between a private branch exchange and the end user device; and

connecting the bearer path to the end user device via the enterprise gateway server when the end user device answers the call.

19. A system, comprising:

a private branch exchange (PBX) configured to

receive an instruction to route a call to a phone associated with a mobile station;

establish a fork to route the call to the phone and to an enterprise gateway server;

an enterprise gateway server configured to

route the call to a carrier network;

notify the PBX that the mobile station is ringing; and

wherein the PBX is configured to cancel the call to the phone responsive to an indication being received that the call was answered at the mobile station.

20. The system of claim 19, wherein the private branch exchange is configured to receive a call origination request of the call destined to a member registered with the mobile station and the phone communicably coupled to the private branch exchange.