Can voip phones be used at home？

The number of people homeworking or tele-commuting is increasing. VoIP has changed the way that we conduct business. We’re more connected than ever before. A favorite VoIP feature among customers is the ability to work remotely from home, but maintain the same phone functionality as they would have at their office.
How can VoIP help me work remotely from home?
By far, the simplest way to retain office functionality is to take your IP phone home with you. By unplugging the already configured phone, stuffing it in your bag and reconnecting it to your router at home, or wherever in the world you are, the phone will magically work as if you never left the office. and there are no charges for calls for anyone on the system.
Is there another way to work remotely without taking my desk phone home?
If you would prefer, you can avoid transporting your work phone back and forth by having a separate IP phone for your home. This phone will also function as if it is on your office’s phone network. While it will have a different number, you can have this phone ring at the same time as your work phone –this way, whether you’re home or at your office, you won’t miss a call.
Use a softphone
It might not always be practical to take your desk phone home with you. In which case, instead you can download a softphone for your computer, smartphone or tablet. A softphone is a phone that lets you make calls over the Internet from a computer or other smart device. The software acts as a phone interface, allowing you to dial numbers and carry out other phone relation functions using your mouse and keyboard.
The good news is that many softphones are free and compatible with several Internet telephony providers. New Rock has developed a very popular softphone named WeWei. Many of customers have WeWei installed on their phones and are ready to make or receive work calls no matter where they are located.
Here are two methods to set up while you work at home:
Method 1: Remote Access with Peer-to-Peer communication across NAT:
In conjunction with New Rock Cloud allows other entities to access an OM located behind a NAT without the need of port mapping on the access router.
- On OM50G, click Basic > Remote access, and make sure to enable the P2P traversal feature.
Note: Registrar for External Terminal is the uniquely generated domain name for sip extension registration; use this domain name to register your sip phone as OM extension.
- Open the Web management interface of the IP phone, click VOIP > SIP, select the desired SIP line, and then enter the registration information in Basic setting.

Method 2: Remote Access with NAT Traversal using DDNS or External IP address:

It is necessary to configure remote-address information and configure port mapping on the Internet ingress router

- On OM50G, click Basic > Remote access, and set remote address
Configure port mapping on the Internet ingress router.
Note: Keep the mapping target port number the same as the SIP signaling port and the RTP port range of the OM.
- On the external IP extension, set the registrar address to the IP address or domain name configured on the Basic > Remote Access page.