You can receive calls on your Call.com numbers on any device. All inbound calls are routed from the caller over the internet to the Call.com app, so you must have internet access to receive calls. You can set up voicemail for when you are not online or unavailable.
If you're ever traveling abroad and want to avoid roaming fees, try making and receiving calls and messages from other Call.com users. Plus, be sure to use Wi-Fi whenever possible to avoid any data usage charges from your operator. To avoid any unexpected fees, it's a good idea to contact your mobile provider beforehand to learn more about roaming in other countries