Abstract: The present disclosure provides a communication system and method, among other things. As a non-limiting example, the method includes receiving a call from a caller, parking the call, and while the call is parked, determining a paging target for the call. The method may further include paging a first target area in an attempt to summon the paging target to retrieve the parked call. The method may further include paging a second target area in an attempt to summon the paging target to retrieve the parked call, receiving a response from the paging target, and based on the response received from the paging target, connecting the paging target with the caller.

Abstract: The present disclosure provides a communication system and method, among other things. As a non-limiting example, the method includes receiving a call from a caller, parking the call, and while the call is parked, determining a paging target for the call. The method may further include paging a first target area in an attempt to summon the paging target to retrieve the parked call. The method may further include paging a second target area in an attempt to summon the paging target to retrieve the parked call, receiving a response from the paging target, and based on the response received from the paging target, connecting the paging target with the caller.

Abstract: The present disclosure provides a communication system and method, among other things. As a non-limiting example, the method includes registering a first user device as a first Multi Device Access (MDA) device for a user, registering several other user devices as MDA devices for the user, marking the first user device with a first alerting priority, marking the other devices with a second alerting priority that is different from the first alerting priority, receiving an incoming call for the user, and causing the first user device to alert for the incoming call at a different time than the other user devices based on the first alerting priority being different from the second alerting priority.

Abstract: An initial request is received to establish a communication session. The initial request contains a communication address of a first communication device. A communication server detects that the communication session cannot be established across a primary network. In response, the initial request is repurposed by changing the first communication address to a second communication address. The changed request is sent to a communication system, which adds a field to the changed request that indicates that the changed request is to be sent via a secondary network. The changed request is sent with the field to the communication server. The changed request with the second communication address is sent to a gateway to establish the communication session across a secondary network. A portion of the communication session is established using the second communication address. The first communication address is sent in the portion of the communication session using Dual-Tone-Multi-Frequency (DTMF).

Abstract: Methods and systems for supporting the alternate routing of calls between endpoints, such as session initiation protocol (SIP) endpoints, are provided. An inner gateway alternate route (IGAR) application is invoked when the primary, Internet protocol, communication network is overloaded or otherwise unable to handle a call. The IGAR application assigns incoming and outgoing trunks, and serves as a contact point for session managers in routing the trunk call.

Abstract: An initial request is received to establish a communication session. The initial request contains a communication address of a first communication device. A communication server detects that the communication session cannot be established across a primary network. In response, the initial request is repurposed by changing the first communication address to a second communication address. The changed request is sent to a communication system, which adds a field to the changed request that indicates that the changed request is to be sent via a secondary network. The changed request is sent with the field to the communication server. The changed request with the second communication address is sent to a gateway to establish the communication session across a secondary network. A portion of the communication session is established using the second communication address. The first communication address is sent in the portion of the communication session using Dual-Tone-Multi-Frequency (DTMF).

Abstract: A distributed call control system is provided that can allot bandwidth amongst several call controllers. The distributed call control system includes one or more access elements that interface with a cloud that execute two or more instances of call processing servers that administer call control. The cloud members negotiate and determine bandwidth allocation amongst the members and the access elements. If an access element requires more bandwidth, the access element assesses its own needs and requests more bandwidth from the cloud. The negotiation and requests for bandwidth are accomplished with a set of dynamic and static bandwidth data that regiment the control of the bandwidth.

Abstract: Methods and systems for supporting the alternate routing of calls between endpoints, such as session initiation protocol (SIP) endpoints, are provided. An inner gateway alternate route (IGAR) application is invoked when the primary, Internet protocol, communication network is overloaded or otherwise unable to handle a call. The IGAR application assigns incoming and outgoing trunks, and serves as a contact point for session managers in routing the trunk call.

Abstract: A distributed call control system is provided that can allot bandwidth amongst several call controllers. The distributed call control system includes one or more access elements that interface with a cloud that execute two or more instances of call processing servers that administer call control. The cloud members negotiate and determine bandwidth allocation amongst the members and the access elements. If an access element requires more bandwidth, the access element assesses its own needs and requests more bandwidth from the cloud. The negotiation and requests for bandwidth are accomplished with a set of dynamic and static bandwidth data that regiment the control of the bandwidth.

Abstract: In one configuration, the present invention is directed to an enterprise network that includes geographically dislocated first and second network regions 202 and 206 communicating with one another through first and second networks 252 and 248 and respectively comprising first and second gateways 220 and 224 and first and second groupings of trunks. A common electronic address is associated with the second grouping of trunks. A media server 200 is positioned in the first network region 202 that includes an inter-gateway routing agent 260. The first network region transmits, as part of the establishment of a real-time or near real-time communication between first and second subscribers respectively in the first and second network regions, the common address to the second gateway 224. After the outgoing communication is answered by the second gateway 224, the first network region transmits in band to the second gateway 224 a user identifier associated with the second subscriber and/or a phantom user.