有什麽不同嗎:Google Voice+OBi110 和 netTalk Duo

Great Things You Can Do with Google Voice on the OBi110:
- Direct dial calls to the USA and Canada for free! **
- Direct dial calls to other countries at incredibly low international rates!
- Use an Analog Telephone Adaptor-type VoIP device (OBi110) with Google Voice integration in conjunction with the cool features available with Google Voice – e.g. voicemail transcription, on-line voicemail, contact management, international calling, etc.

More Cool Stuff You Can Do with OBi & Google Voice:
- Receive calls to your Google Voice number on the phone attached to the OBi device.
- Use the OBiON app for iPhone, iPad, iPod touch and Android devices for true VoIP calls over Wi-Fi, 3G or 4G using the OBi device to bridge to Google Voice and call traditional numbers (without using your cell minutes).
- Receive calls to your Google Voice number then use the OBi device to bridge to your iPhone, iPad, iPod touch and Android devices using Wi-Fi, 3G or 4G (without using your cell minutes).
- Easily set-up Google Voice trunks on your IP PBX phone system – no need for system upgrades or complex configs. The OBi acts as a SIP to Google Voice gateway.