There many reasons to choose Odoo some of them are listed below :
Yes, we do. Contact us for more information.
Yes, but all the devices are not compatible with odoo. You can use odoo compatible devices.
VOIP integration is not available in community version of Odoo. But it is available in Odoo Enterprise Edition.
Odoo's POS is a web application that can run on any device that can display websites with little to no setup required. The Point of Sale works perfectly on any kind of touch enabled device, whether it's multi-touch tablets like an iPad or keyboardless resistive touchscreen terminals.
Deploy new stores with just an internet connection: no installation, no specific hardware required. It works with any iPad, Tablet PC, laptop or industrial POS machine. While an internet connection is required to start the Point of Sale, it will stay operational even after a complete disconnection.