Are there any limits on the number of calls per second?

Yes, we do have some account level limitations on the number of calls allowed per second. 

  1. Outbound API Calls: By default, all accounts come with a limit of 2 calls per second. All Outbound Call API requests are queued upon acceptance, then dequeued and initiated as per the Calls Per Second (CPS) configured for your Plivo account. 
  2. SIP/Browser Calls & Inbound calls to Plivo Numbers: This limitation applies to outbound calls from SIP/Browser clients and the inbound calls to Plivo numbers. This is termed as Inbound CPS as outgoing call requests from SIP/Browser Clients are also inbound requests to Plivo. The default Inbound CPS is 10. Let's consider different scenarios of how this Inbound CPS will be applicable:

          In all three scenarios below, only 10 calls will be processed and the rest will be rejected. 
    1. Scenario1:

      • Outbound SIP/Browser Calls: 11 calls        

      • Inbound Calls to Plivo numbers: 0 calls. 

    2. Scenario2:

      • Outbound SIP/Browser Calls: 0 calls        

      • Inbound Calls to Plivo numbers: 11 calls. 

    3. Scenario3:

      • Outbound SIP/Browser Calls: 5 calls        

      • Inbound Calls to Plivo numbers: 6 calls.

Note: This limitation is applied on your main account and not at sub-account level. 

To request an increase in the number of calls you can make/receive per second for your account, please send us a message at the Contact page. (Due to extra costs incurred by carriers and server providers, a minimum commitment is required, depending on the number of calls per second you request.)

 

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