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The telecommunication market, nowadays, is flooded with many telecommunication providers. That is why it is recommended to ponder upon a few pointers before purchasing that planned virtual PBX system for your business. Adding a virtual PBX service can be a hit or miss venture. But you can guarantee its efficiency if the system you choose fulfills your exact requirements.

Free Trials
Check with the provider whether they offer a trial period so you can sample and evaluate their services. There are a few providers who offer a no-charge 30 day trial like RingCentral, My1Voice and Phone.com. Grasshopper on the other hand offers a 30 day money back guarantee.

Monthly Fee
The cheapest basic plan usually starts at $9.88, mid-level plan at $19.88 and $50.00 for a high-end plan.

Activation Fee
While most providers activates the subscription immediately some though charge a fee of around $15.00 or more.

Phone Extensions
These are the numbers of lines where calls can be forwarded. Phone.com, My1Voice and Grasshopper offers unlimited extensions on every plan.

Included Minutes
These are the number of minutes for incoming calls or outgoing calls for some other plans. The lowest being offered is 100 minutes for the basic plan and 10000 for the high-end plan.

Included Internet Fax
A feature that allows sending of faxes without the use of a fax machine. While most providers include this service on every plan, RingCentral offers the best service in this category.

Other Features to Look for
Every provider offer a variety of virtual PBX service features like that of conference calls, message alerts, call screening, auto attendant service, web management, additional extensions, voicemail and many more.