Telephone 4+

Did work well.

No issues at all with function as VOIP client.
Took me less than a minite to hook up to my VOIP system.

One minor problem is the lack of a mute button sincd OS X doesn't provide any reasonable way of muting the microphone.

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Revised rating: down to three stars.
This used to be close to perfect, minimal but all the functionality required of a basic VOIP phone app.
However, it has now moved to subscription model (I would gladly pay for the application, but subscription? Never!).
It still works without a subscription, but nags each time it is launched.

A new “feature” is a list of previous calls. I don’t want this. In particular, I don’t want a list of who I have been talking with displayed on my screen for all the world to see.
The number of previous calls made is limited in the non-subscription version, but neither version seems to have the ability to completely suppress this unwanted “feature”.

For over a year, there have been promises of new functionality (for subscribers). None seem to have materialized, it has just been left in this annoying state.

Actively looking for a replacement.

Was great, getting progressively worse

This was the perfect softphone app. All the things "missing" (as claimed in other reviews) are there- you just need to spend a couple minutes, at most, reading the docs to discover them. You can interact with phone menus just by typing, you can mute, transfer, etc.

The problem is that the dev is now adding unwanted "features" while breaking other features. And it's started to crash - not frequently, but before, it *never* did.

It's still head and shoulders above every other client I was able to find when I checked them all out a couple years ago. If this keeps up though, I'll have to start checking them out again. :-( Maybe one has gotten better.

Developer Response ,

My intention certainly wasn’t to add crashes. Please write me an email to support@64characters.com to help me solve this problem.

Confused As To What This Does

I downloaded this App to my iMac and started it up. It gave me a 'connecting' message and nothing else happened. After several minutes, I quit the App the removed it.
After reading a response to my comment, it appears that I misunderstand the function of this App. Not sure I understand it now. The website could use more documentation besides 'It allows you to make phone calls over the Internet'.
In the blog it states, 'If your current provider doesn’t offer that, you can search the Internet for a SIP provider. SIP is a standard protocol for VoIP that the providers and the phones support. After the registration, the provider will send you settings to use in an app.'

Developer Response ,

The app itself doesn’t provide phone service. It needs to be configured with SIP settings received from a phone provider. If you’d like to try to configure it again, feel free to write me an email to support@64characters.com, I’d be glad to help.