Some top alternatives to iPlum includes VoIPstudio, Jive Voice, Vonage Business, Voxloud and MyOperator.
Yes, iPlum provides API.
Yes, iPlum provides mobile app.
iPlum is located in Silicon Valley, California
iPlum offers Subscription, Quotation Based pricing models
The starting price of iPlum is $8.99/User/Month when Billed Yearly