Some top alternatives to iPlum includes VoIPstudio, Jive Voice, Vonage Business, Voxloud and MyOperator.
Yes, iPlum provides API.
Yes, iPlum provides a 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