In the previous article, you are provided with some VoIP options which you can choose. Those are not the only option you have. There are still many options for VoIP service. Take consideration on some aspects to determine which VoIP service is the best for you.
 
Consider getting the service from Fonality PBXtra. The service is available with a server, phones, network switch, and network connection. It works in complementary with software solution which is known as Trixbox Pro from Fonality. The system is open source. Because of this reason, it provides flexibility to people implementing the solution. The solution offers many features and can be used easily.
Another company which is recommended by many reviews for small and medium business is Cisco SBCS. Cisco Smart Business Communications System is full package small business VoIP system. The system integrated Unified Communications, networking, and systems management. The service comes with many features including advanced users management functionality. You will also get some security services such as firewalling with messaging and switching. The system can be wireless. The downside of the system is not easy to use.
In finding VoIP solution for small and medium business, you should consider getting the service from Nortel BCM 50. Nortel’s Business Communications Manager is a solid system which is able to support up to 50 users. It is available with the series of applications such as unified messaging, call center, conferencing, and paging. Nortel is hybrid system which means the system has both IP phone and digital phones. The system is working complementary with Business Ethernet Switch 50. It is made for optimized physicial space usage. 

However, the system lacks some simplicity and flexibility. You are able to enjoy various features which are less abundant than its competitors. You still can have the option to choose. It is more recommended for you to read some customer reviews about the service before choosing any.