Hello user!
Following are the advantages of VOIP:
1. Call costs are cheaper than traditional telephone land line calls.
2. Upgrading is simple.
3. Can be integrated with existing telephone connection.
4. Calls are free with VOIP PC-to-PC, irrespective of distance.
5. Virtual number enables to make calls across the globe.
6. Any number of geographical areas can be purchased, that works very cheap.
7. Messaging is also possible with VOIP phone.
BR,