The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
The Voip Factory Communicator The Voip Factory Communicator offers fully integrated features to accelerate and enhance the usage of the SIP communicator for iPhone 4. Apart from Audio Call , we have added more features, i.e. Video Call, Instant Messaging (IM). Audio Call Video Call Instant Messaging Recent Call Phone Book (Synchronize with Phone Address Book) NAT/Firewall support STUN server Support Background Support for iOS4 Codec Supported :- Audio Codec(G711,GSM,iLBC,Speex) Video Codec (H264, H.263) Codecs Selection Registration Timeout Acoustic Echo Cancellation Packet concealing Packet Lost Concealment (PLC) Comfort Noise Generator (CNG) Resampling Requires iOS 4.1 or later Note: Some mobile operators may restrict the use of VoIP & Sip.. Please make sure they allow sip calls on their network..