Page Comparison

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pros:

• can configure multiple sip SIP accounts
• good technical support
• easy to set up

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• lots of features locked for PRO paid version, such as transfer calls .can configure & multiple sip accounts PRO version only

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Linphone:

http://www.linphone.org/

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• can configure multiple sip accounts
• open source
• supports many platforms (windwswindows, OS X, linuxLinux, android Android and IOSiOS)

cons:

• can be tricky to set up
• some issues with USB sound cards

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