Siphon is a SIP/VoIP client for the iPhone and iPod Touch 2 that allows you to save money on calls when Wi-Fi coverage is available. You can enable VoIP on 3G/GSM, if your carrier subscription allows it.Siphon SIP/VoIP project is the first in his category that works on iPhone and iPod Touch 2 with headset for all SIP providers. It is a native application approved running on 2.X using internal micro/speaker and headset.
» Cydia – Siphon
Siax is a perfect VOIP application for your iPhone. With Siax you can add any or multiple VOIP providers to make cheap calls when you are in a WIFI Hotspot or you have a 3G/UMTS connection. Siax supports SIP and IAX2 protocol.
» Cydia – Siax (VOIP Client)
Nimbuzz lets you call, chat, message, and send photos, music and video on the go, for free. From one contact list, use your favorite features to connect with all your buddies from Skype, Windows Live Messenger, Yahoo! Messenger, ICQ, GoogleTalk, AIM, GaduGadu, Jabber and Twitter, plus 23 social networks including Facebook and MySpace.
» App Store – Nimbuzz
Many of us remember the instant messaging and VoIP application Fring from the 1.1.4 jailbreak community. Well, it’s now come to the official App Store with much of the same features, but a much more polished look. It is available as a free download in the App Store. Link to download is inside. » App Store- Fring
According to iSpazio, the developers of Fring are investigating a way to get their popular Fring (iPhone Voip application) into the App Store. He mailed with the developers and received the following answer:
» App Store – Fring soon to be released?
The first VoIP application for the iPhone (Truphone) has surfaced onto the Apple App Store. Truphone enables you to make calls on your iPhone over the internet at amazingly low rates. It’s handy for making international calls from your home country and for making calls when you’re for business or holidayin another country. TruPhone itself is free to download in the App Store however per call you make you will need to pay a little fee.
» App Store – TruPhone (first iPhone Voip client)
One of the most welcome applications for the iPhone is a Voip application which would allow us to make calls using WiFi. Well the good news is iCall for the iPhone is coming and it will be available officially from the iTunes App Store.
