Finally, the first native SIP/VOIP application on iPhone has come to the App Store.
All calls are made directly to the SIP provider, no middle-man like customized proxy involved, so no voice delay and call quality is excellent.
Check it out at iTunes App Store:
itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=298202722&mt=8
The company that created it:
http://www.vnet-corp.com/iphone.htm

SipPhone Dialer Screen
Using WiFi connection on your iPhone or iPod Touch 2nd Gen, SipPhone turns your iPhone or iTouch into a pocket VOIP phone, so you can make cheap or even free phone calls (local or long distance) over the internet at anytime, and from almost anywhere.
Key Features:
- Support SIP protocol
- Support speaker phone
- Voice mail notification
- Multiple ringtone selection
- Support DTMF tone (RFC2833/Inband) during the call
- Support G711 and GSM codec
- Support using alternative RTP port
- Support Stun for NAT Traversing
- Support Sip Proxy
- Capability of mute/hold call
- Support multiple SIP accounts
- Dial directly from iPhone’s address book
- Support prefix dialing when make call from address book
- Redial from recent call list
- Shortcut to make regular celluar call
- And much more …
Here are a few of our first customers have to say about SipPhone:
This is the best voip app ever! — by SonnyKovacs
Better than fring for SIP voip — by cubalibr…
Awsome — by MikesT…
Just what I always needed! … a must get application — by malta25
Excellent App — by Andrew She…
App Store Link:
itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=298202722&mt=8


on Feb 6th, 2009 at 12:33 am
Great app, it makes my ipod touch(2nd Generation) to a phone !, very nice, and it come with great voice quality, work stably as rock
. though graphic need to be improved.
Love it
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on Mar 8th, 2009 at 3:41 am
What about siax ? I think it is much better than sipphone http://www.wapopia.com/blog/2009/03/07/sip-client-for-iphone/
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on Mar 7th, 2010 at 4:02 am
I saw in the link above that Fring is free. $5 or $7 is not too much at all. However I am wondering if Fring is as good as sipPhone and siax.
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