Cloud-based voice calling service, video calling service, and over-the-top services

A system, comprising:

• a computing system, comprising:
• at least one first processor;
• and
• a first non-transitory computer readable medium communicatively coupled to the at least one first processor, the first non-transitory computer readable medium having stored thereon computer software comprising a first set of instructions that, when executed by the at least one first processor, causes the computing system to:
• receive a call request to establish a call connection between a first call identifier (“ID”) and a second call ID, the first call ID being associated with a first user and being associated with a first communication service provider, the second call ID is associated with a second user and being associated with a second communication service provider, a first administrative domain of the first communication service provider being separate from a second administrative domain of the second communication service provider;
• determine whether the first administrative domain of the first communication service provider and the second administrative domain of the second communication service provider have been interconnected via a unified communications and collaboration interconnection (“UCCI”), wherein the UCCI is a cloud-based interconnection;
• based on a determination that the first administrative domain of the first communication service provider and the second administrative domain of the second communication service provider have been interconnected via the UCCI, query a UCCI database to determine whether the second call ID is accessible via the UCCI;
• and
• receive a query response, the query response including one of a first query response indicating that the second call ID is accessible via the UCCI or a second query response indicating that the second call ID is not accessible via the UCCI;
• wherein in response to receiving the first query response indicating that the second call ID is accessible via the UCCI, establishing a cloud-based call connection between a first user device associated with the first call ID via the first administrative domain of the first communication service provider and a second user device associated with the second call ID via the second administrative domain of the second communication service provider via the UCCI, without traversing any node of a public switched telephone network (“PSTN”).

A method, comprising:

• receiving, by a computing system, a communication service request to initiate a communication service, the communication service comprising one of an audio-only call, a video call, or an over-the-top (“OTT”) service during the audio-only call or the video call between a first call identifier (“ID”) and a second call ID, the first call ID being associated with a first user and being associated with a first communication service provider, the second call ID is associated with a second user and being associated with a second communication service provider, a first administrative domain of the first communication service provider being separate from a second administrative domain of the second communication service provider;
• querying, by the computing system, a unified communications and collaboration interconnection (“UCCI”) database to determine whether the second call ID is accessible via the UCCI;
• and
• receiving, by the computing system, a query response, the query response including one of a first query response indicating that the second call ID is accessible via the UCCI or a second query response indicating that the second call ID is not accessible via the UCCI;
• wherein in response to receiving the first query response indicating that the second call ID is accessible via the UCCI, initiating, by the computing system, a cloud-based communication service over the UCCI, without traversing a public switched telephone network (“PSTN”).