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Recommended As
Pros and Cons
Sources
Amazon Rating

(average)

Where To Buy
 
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Features
Type of VoIP
E911 calls
Hardware required
Professional installation
Add extensions
Contract required
Trial period
Activation fee
Unlimited plans
Cap on "unlimited" calls
Fee to use existing phone number
Out of area number
Second line
Voicemail
Convert voicemail to text message to cell phone
Caller ID
Block calls from personal list
Block anonymous calls
Call forwarding
Call waiting
SMS (text messaging to cell phones)
Conference calls
Mobile version
Fax
Prepaid long distance
Video
Receive calls to online number
MPN
UPC
 
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    Cable-company VoIP

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    *Est. $12 to $60 pe…
    Pros: best call quality, reliability, professional installation, often includes battery backup
    Cons: trouble scheduling installation, support, international calls cost extra, no choice of company, best companies vary by region

    not avail.
     
    Cable-company VoIP
    Cable
    Yes
    N/A
    Yes
    Yes
    Varies with provider
    30 days
    Varies with provider
    Yes
    No
    No
    No
    Extra cost
    Yes (may cost extra)
    Yes
    Yes
    Varies with provider
    Varies with provider
    Yes
    Yes
    No
    Yes
    No
    Yes
    No
    No
    N/A
    N/A
    N/A
     
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    Vonage

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    *Est. $10 to $35 pe…
    Pros: reasonable price, more features than most, unlimited virtual numbers, some international calling included
    Cons: some complaints about technical support, call quality not the best

    not avail.
     
    Vonage
    Hardware
    Yes
    Adapter (Free with plan)
    Available in many areas (*Est. $100)
    Yes
    Month-to-month
    N/A
    No
    Yes
    Yes, 5,000 min. per month
    No
    Yes, unlimited "virtual numbers"
    Extra cost
    Yes
    25 cents/message (or included in $25 per month World plan)
    Yes
    No
    Yes
    Yes
    Yes
    No
    Yes
    Yes
    $10 per month (plus $10 activation fee)
    No
    No
    Free option; also many local-access numbers for friends to use worldwide to call you free; plus unlimited "virtual numbers"
    N/A
    N/A
     
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    Ooma

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    *Est. $225 to $235
    Pros: no monthly charges (except taxes/fees), good call quality, free long distance in U.S.
    Cons: steep hardware cost, usage cap 5,000 minutes per month, advanced features incur monthly fee, international calls not the cheapest

    (2,198 reviews)
     
    Ooma
    Hardware
    Yes
    $225 to $235 (the Ooma hardware device); use any regular corded or cordless phone; Telo plan requires special handsets
    No
    Yes; separate device required
    No
    30 days
    No
    Includes unlimited calls in the U.S.
    Yes, 5,000 min. per month
    $40 (or included in Premier account, *Est. $10 per month)
    Yes
    Premier account (*Est. $10 per month)
    Yes
    Premier account (*Est. $10 per month)
    Yes
    Premier account (*Est. $10 per month)
    Yes
    Yes
    Yes
    No
    Premier account (*Est. $10 per month)
    Yes
    Yes
    Yes, with Ooma Mobile
    No
    N/A
    OOMA
    892943002100
     
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    Voice Calls from Gmail

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    Free to U.S. and Ca…
    Pros: free calls to all phones in U.S. and Canada, integrated with Gmail contacts
    Cons: variable voice quality, no 911 service, must call from computer in U.S., may not remain free after 2010

    not avail.
     
    Voice Calls from Gmail
    Software
    No
    Computer with built-in or add-on microphone and speaker
    No
    No
    N/A
    N/A
    N/A
    Free unlimited calls within U.S. and Canada
    N/A
    N/A
    Yes, with free Google Voice account
    N/A
    Yes, with free Google Voice account
    Yes, with free Google Voice account
    Yes
    Yes, with free Google Voice account
    No
    Yes, with free Google Voice account
    Yes, with free Google Voice account
    No
    No
    Yes, but Google Voice app sends calls over carrier network, not VoIP
    No
    Yes
    Video chat
    Yes, with free Google Voice account
    N/A
    N/A
     

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