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Worldwide SIP
Compliant
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Does not use
other user’s CPU, Memory, and Bandwidth
to complete calls |
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Calls can
be completed through most firewalls and
proxies |
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Calls can
be completed through Symmetric NATs in
P2P mode |
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Guaranteed
continued free usage of network to
complete calls |
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Depends on Provider
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Competitive PC-to-Phone Rates
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Does not
require customer applies for a login
account or telephone number
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Uses
Secure Communication Protocols
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All in one
retail solution |
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No
previous knowledge of VoIP required by
user |
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No
software to run by user in order to make
a call |
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Depends on
Provider
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