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You know what, keepcalling.com seems to not have any access number in China. Could it be the case, you know?
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You know what, keepcalling.com seems to not have any access number in China. Could it be the case, you know?

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keepcalling.com seems to not have any access number in China
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Sorry for the mis-information .... you are correct. I see that you can get a virtual number in China, but that's no use you in this case.<br />
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I'd be surprised if you can't get a VOIP voice service from Hong Kong.<br />
Have a look at the obvious voice services (such as Skype),<br />
and the likes of <a href="http://www.whatsapp.com/" rel="ugc nofollow">whatsapp</a> for messaging.
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> keepcalling.com seems to not have any access number in China

Sorry for the mis-information .... you are correct. I see that you can get a virtual number in China, but that's no use you in this case.

I'd be surprised if you can't get a VOIP voice service from Hong Kong.
Have a look at the obvious voice services (such as Skype),
and the likes of whatsapp [http://www.whatsapp.com/] for messaging.

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My CEO travels to Hong Kong and China once every quarter. When he stays there for two weeks he usually uses his iPhone to make hundreds of minutes of phone calls via the Verizon roaming voice plan. That amounts to as high as $900 per trip. (The roaming rate is $1.99/minute in those areas.) That makes no sense. Can you recommend some cost-saving solutions?
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My CEO travels to Hong Kong and China once every quarter. When he stays there for two weeks he usually uses his iPhone to make hundreds of minutes of phone calls via the Verizon roaming voice plan. That amounts to as high as $900 per trip. (The roaming rate is $1.99/minute in those areas.) That makes no sense. Can you recommend some cost-saving solutions?

Roaming voice rate too expensive, any voice solution recommended for traveling to Hong Kong and China?

Smartphones run using a variety of operating systems -- Android, iOS and Windows Mobile most commonly -- and an even wider variety of programming languages, including Objective-C, Java, Visual C#, C++ and .NET, not to mention HTML5 and JavaScript, and cross-platform frameworks such as PhoneGap.

Smartphone Programming

Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. The term specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).  Examples of the VoIP protocols are H.323, Media Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), H.248 (also known as Media Gateway Control (Megaco)), Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Secure Real-time Transport Protocol (SRTP), Session Description Protocol (SDP), and Inter-Asterisk eXchange (IAX).

Voice Over IP

The iPhone is a smartphone made by Apple Inc. It and the iPad, along with several other mobile devices from Apple, run on the iOS operating system, which has its own topic, as does the iPad for device-specific questions. Native iOS applications are written in Objective-C or in Swift using the Cocoa Touch frameworks or HTML5 compiled with the help of a package manager such as Adobe PhoneGap; a common IDE is Xcode.