US 11,855,808 B2 · Cloud-based private branch exchange

Abstract

A system includes a customer network and a telephony server. The customer network is associated with an independent carrier (IC), a native carrier, or both. The customer network includes a call manager, a telephone gateway, an internet gateway, a first device associated with the IC, and a second device associated with the native carrier. The first device communicates with the telephone gateway via the call manager. The second device communicates with the internet gateway. The telephony server is associated with the native carrier. The telephony server supports traffic from the first device and the second device. The telephony server includes a PBX and a session border controller (SBC). The SBC communicates with the telephone gateway via a session initiation protocol (SIP) trunk.

Claims20

Dependent claims

A unified communications as a service (UCaaS) system comprising:

a customer network associated with a first carrier and a second carrier, the customer network comprising:
a call manager associated with the first carrier;
a telephone gateway communicatively coupled to the call manager;
an internet gateway associated with the second carrier;
a first device associated with the first carrier and configured to communicate with the telephone gateway via the call manager;
and
a second device associated with the second carrier and configured to communicate directly with the internet gateway;
a telephony server associated with the second carrier and configured to support traffic from the first device and the second device, the telephony server comprising:
a private branch exchange (PBX) configured to route a call from the second device via the internet gateway;
and
a session border controller (SBC) communicatively coupled to the PBX and configured to route the call to the telephone gateway via a session initiation protocol (SIP) trunk;
and
wherein the call manager is configured to route the call to the first device.

10 more elements

Dependencies are inferred from the claim text.

Cloud-based private branch exchange

Life of this patent

Cloud-based private branch exchange

Life of this patent

Abstract

Claims20