VoIP can facilitate tasks that may be more difficult to achieve using traditional networks:

• Ability to transmit more than one telephone call down the same broadband-connected telephone line. This can make VoIP a simple way to add an extra telephone line to a home or office.
• Incoming phone calls can be automatically routed to your VoIP phone, regardless of where you are connected to the network. Take your VoIP phone with you on a trip, and wherever you connect to the Internet, you can receive incoming calls.
• Many VoIP packages include PSTN features that most telcos (telecommunication companies) normally charge extra for, or may be unavailable from your local telco,such as 3-way calling, call forwarding, automatic redial, and caller ID.
• VoIP can be secure by using existing off the shelf protocols as Secure Real-time Transport Protocol. Most of the difficulties of creating a secure phone over traditional phone lines, like digitizing and digital transmission are already in place with VoIP. It is only necessary to encrypt and authenticate the existing data stream.
• VoIP is location independent, only an internet connection is needed to get a connection to a VoIP provider; for instance call center agents using VoIP phones can work from anywhere with a sufficiently fast and stable Internet connection.
• VoIP phones can integrate with other services available over the Internet, including video conversation, message or data file exchange in parallel with the conversation, audio conferencing, managing address books and passing information about whether others (e.g. friends or colleagues) are available online to interested parties.
• Ability to transmit wideband speech which can significantly improve the quality of speech and music.

• Complete phone system: Provides call switching, routing & queueing
• Purchase cost dramatically lower than a traditional hardware PBX
• Scaleable - Unlimited extensions and phone lines. No proprietary expansion modules needed!
• Web based configuration & status indication - Easy phone system management!
• Unified messaging: Receive voice mail via e-mail
• Auto attendant (e.g. 1 for sales, 2 for support etc.)
• Reduce long distance and inter office call costs
• No more expensive proprietary system phones: Use standard SIP phones
• Eliminate the phone wiring and make moving offices easier