You can buy toll free number for usa from below VoIP service provide

1. Nextiva Business Phone Service

Toll free number for usa

Their price starts from $20 per user per month for Basic plan. Unlimited Calling to USA, Unlimited Internet Faxing, Voicemail to Email, IVR aka Auto Attendant. However Free Local phone number and Free Toll Free Number included in plan.

Pros: They have all necessary features a business phone system can have, plus they are offering Local phone number or toll free number for USA with all plans.

Cons: Their price is pay per user price and suitable only for companies doing lots of calls.

In Conclusion: As a result i can say its good phone service only if you are heavy usage users.

In addition, you can find more information about Nextiva from their website

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2. 8×8 VoIP PBX System

8×8 VoIP PBX price starts from $28 per user per month for XSeries X2 plan. Unlimited Calling within 14 Countries, Unlimited Internet Faxing, Call Queues, IVR Welcome greeting. These plans also have Free Local phone number and Free Toll Free Number included in plan.

Pros: They have more than enough features for a business phone system can have, even some features are useless for small businesses .They also offer Free calls to 14 countries in their basic plan.

Cons: High price for small businesses, their price is also pay per user price and buying this one can be additional burden on company.

In Conclusion : As a result i can say its good phone service only if you are heavy usage users.

In addition, you can find more information about 8×8 Phone Service from their website

3. dOpenPBX Hosted PBX

dOpenPBX provides hosted PBX System based on asterisk, Micro plan is capable of handling 5 extensions.

Features

Pay for 1st month and get 3 additional months

Free migration from existing phone service

Multiple IVR

Multiple Department

Capable upto 5 user but you can use it for upto 10 extensions if concurrent call doesn’t exceed 5 calls.

In addition Free USA Tollfree phone number

Voicemail to Email

works with almost every VoIP provider

Pros: Scalable without investing huge amount, get all features at no additional cost. Their plans are pay per usage not based on pay per user which is good. Most importantly 24 x 7 Free support.

Cons: If you are single user then PBX plan is not for you, however you can use their Phone Service plan which starts with $19/month , additional user $5 per month

In conclusion: Therefore I can say this are best choice whether its for single user or 100 users, very cost effective without extra burden on your pocket. In other words improve your bottom line.

For more information visit dOpenPBX

Get $20 credit when you signup at telnyx for VoIP account using this link