Any flavor of smartphone can do WiFi only.
The Zoiper softphone is free and runs of both IOS and Android, and does
both SIP and IAX protocols.
In fact, I lent one of my buddies from Canada a SIP account with a Dayton
phone number for use during the Hamvention.
As long as you have basic, decent Wifi, calling is cheap and easy.
73, Gerry W1VE
On Wed, May 24, 2017 at 9:55 AM, K7LXC via CQ-Contest <
cq-contest@xxxxxxxxxxxxxx> wrote:
> > Mobile phone providers have coverage maps that although not perfect, do
> give some idea of coverage. For example, at my WV QTH neither T-Mobile
> nor
> Verizon covers the area. But visitors using one or the other of those
> carriers have had their devices work for a minute or two intermittently --
> enough to alert them to a voicemail or to download some email. Then the
> signal is gone again, usually for hours until suddenly their phone dings
> again with a message or something. It's called "propagation." I'm not
> sure of the mode.
>
> It might be due to ducting. W7ZR had a place on the east coast of Baja
> (XE2DV) on the Sea of Cortez where the cell coverage was very spotty but
> he had a yagi pointing north to AZ and occasionally he'd have a connection
> due to ducting over the water. I think the path eventually deteriorated
> and
> I think having no internet access was one of the reasons he now lives in
> AZ.
>
> Cheers,
> Steve K7LXC
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>
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