GO Telecom Company, the market leader of VoIP telephony and solutions brings you GO Terhal, iOS Edition. GO Terhal is an open standards, SIP-based softphone for the iPhone, iPod touch & iPad.** iPhone and iPod Touch supported (iPad compatible) **** You need GO Terhal account to use this application **GO Terhal iOS provides an intuitive interface for multi-call management including the ability to swap, merge or split between two calls as well as supporting attended and unattended transfers.With GO Terhal iOS Edition, you can use a Wi-Fi or 3G connection to make and receive calls, or use your iPod touch as a Wi-Fi phone!Standard Phone FeaturesGO Terhal iOS has all the standard telephone features, including: iOS 4.0+ Background Support Multiple Account Support Call display and voicemail indicator Speakerphone, Mute and Hold Call history list of received, missed and dialed calls Contact List and Contact Favorites - leveraging the iPhone Contacts Ringtones and contact avatars Custom wallpaper Multiple Call Support Swap between two active calls Merge and Split calls (three-way conferencing support) Call transfer (attended and unattended) Call Forwarding Dial Plan Support Audio codecs include G.722 (HD), G.711, iLBC and GSM G.729 ready (option to purchase in app) Support for DTMF: the ability to enter numbers to use an auto attendant Via RFC 2833, SIP INFO and Inband VPN Support iPhone 4 Retina Display SupportAdvanced Features Network Transversal Application Managed, Server Managed or User Specified Global IP Support STUN & ICE Media Efficiency and Quality Noise Reduction VAD (Voice Activation Detection) QoS (Quality of Service) ToS Marking DSCP (Differentiated Services Code Point) Security and Encryption TLS and SRTP DNS SRV record lookups Call quality statisticsAccessoriesThe following accessories are supported: Headset with microphone (including Bluetooth): GO Terhal uses the ear-piece and microphone on the headset.(Bluetooth not supported on the iPad.) Headphones (no microphone): GO Terhal uses the ear-piece on the headphone and the built-in microphone on the iPhone.*IMPORTANT: SERVICE PROVIDER REQUIRED*** You need GO Terhal account to use this application ***IMPORTANT: VOIP OVER 3G NOTICE*Some mobile network operators may prohibit or restrict the use of VoIP functionality over their network and may also impose additional fees, or other charges in connection with VoIP. You agree to learn and abide by your cellular carrier's network restrictions. GO Telecom will not be held liable for any charges, fees or liability imposed by your carrier for use of VoIP over 3G.