A system for operating a multitenant telephony system comprising: • a call queue that is constructed to: ∘ receive and store call requests received through a call router application programming interface from a plurality of accounts, ∘ space call requests of a first account in the call queue according to an account inter-call request rate limit of the first account to enforce latency between call requests of the first account, ∘ position call requests of the first account in the call queue to limit a total number of call requests the first account can make in a specified amount of time to a total limit for the first account, ∘ dequeue a call request of the first account such that the account inter-call request rate limit and the total limit of the first account are satisfied, and ∘ provide the dequeued call request of the first account to a telephony resource cluster; • an analysis system that is constructed to predict capacity requirements by monitoring queue length of the call queue and provide a capacity prediction to a resource allocator; • the resource allocator, wherein the resource allocator is constructed to: provision at least one processing resource of the telephony cluster as a call router based on the capacity prediction provided by the analysis system; • the telephony resource cluster, wherein the telephony cluster includes a plurality of processing resources, wherein at least one of the processing resources is provisioned as a call router, wherein the telephony resource cluster is constructed to: ∘ establish a call session for a dequeued call request received from the call queue by using a processing resource provisioned as a call router and one of a plurality of network channels of the system, wherein the established call sessions of different accounts share processing resources of the telephony resource cluster that are provisioned for telephony tasks; • the plurality of telephony network channels, wherein the telephony network channels are used as telephony communication channels for call sessions, and wherein the number of call requests stored in the call queue is allowed to exceed the number of telephony channels. • a call queue that is constructed to: ∘ receive and store call requests received through a call router application programming interface from a plurality of accounts, ∘ space call requests of a first account in the call queue according to an account inter-call request rate limit of the first account to enforce latency between call requests of the first account, ∘ position call requests of the first account in the call queue to limit a total number of call requests the first account can make in a specified amount of time to a total limit for the first account, ∘ dequeue a call request of the first account such that the account inter-call request rate limit and the total limit of the first account are satisfied, and ∘ provide the dequeued call request of the first account to a telephony resource cluster; ∘ receive and store call requests received through a call router application programming interface from a plurality of accounts, ∘ space call requests of a first account in the call queue according to an account inter-call request rate limit of the first account to enforce latency between call requests of the first account, ∘ position call requests of the first account in the call queue to limit a total number of call requests the first account can make in a specified amount of time to a total limit for the first account, ∘ dequeue a call request of the first account such that the account inter-call request rate limit and the total limit of the first account are satisfied, and ∘ provide the dequeued call request of the first account to a telephony resource cluster; • an analysis system that is constructed to predict capacity requirements by monitoring queue length of the call queue and provide a capacity prediction to a resource allocator; • the resource allocator, wherein the resource allocator is constructed to: provision at least one processing resource of the telephony cluster as a call router based on the capacity prediction provided by the analysis system; • the telephony resource cluster, wherein the telephony cluster includes a plurality of processing resources, wherein at least one of the processing resources is provisioned as a call router, wherein the telephony resource cluster is constructed to: ∘ establish a call session for a dequeued call request received from the call queue by using a processing resource provisioned as a call router and one of a plurality of network channels of the system, wherein the established call sessions of different accounts share processing resources of the telephony resource cluster that are provisioned for telephony tasks; • the plurality of telephony network channels, wherein the telephony network channels are used as telephony communication channels for call sessions, and wherein the number of call requests stored in the call queue is allowed to exceed the number of telephony channels.