OptiPhone app for iPhone and iPad

=== IMPORTANT INFORMATION. PLEASE READ ===
* OPTIPHONE IS A ZRTP SECURED SIP CLIENT AND NOT A VOIP SERVICE.
* OPTIPHONE CAN NOT BE USED WITHOUT ACCESS TO AN OPTICARINA SECURE PBX.
* OPTIPHONE WILL NOT WORK WITH THIRD PARTY SIP SERVERS.

==> IF YOU HAVENT BEEN TOLD TO DOWNLOAD THIS APPLICATION YOU PROBABLY
SHOULDNT!


OptiPhone - Secure Mobile Communication

OptiPhone is ZRTP secured SIP/VoIP softphone for use together with an
OptiCarina Secure VoIP PBX.

OptiPhone is a voice encryption software for your iPhone or iPad.
OptiPhone connects to a central OptiCarina secure PBX for call switching
and forwarding to corporate telephony networks or landlines. This way,
you can make secure calls with your colleagues in the office while
traveling abroad. You do not need to trust the foreign telephone
network, as you can trust on OptiPhones patented encryption algorithm.

* OptiPhone uses standard Internet telephony technology
* ZRTP secured, tap-proof end to end encryption using Diffie-Hellman Key
Exchange (Elliptic Curve Diffie Hellman) and AES 256.
* Intuitive Interface - Making a call with OptiPhone is as easy as using
your standard phone. No hassle with lengthy SIP addresses, no cryptic
security settings: Just dial a number and talk -- OptiPhone takes care of
the security.
* Integration - Connects to OptiCarina secure PBX for secure
conferencing, voice box and call switching.
* Voice Quality - OptiPhone adapts to the available network bandwidth.
* Contacts - Integrates with the system address book and adds presence
information for users registered to the same OptiCarina.
* Missed Call Notification - Notification of missed calls -- in case the
application is not started -- via push notification service (if
supported by the PBX).
* Easy Configuration - No configuration required by the end user. All
settings are provisioned during initial activation of the application.

It only takes a standard desktop PC to break the encryption of a GSM
call. IMSI catchers -- used to intercept GSM calls -- have become
available and affordable for the general public. Knowing this, if you
use your mobile phone for communication on confidential matters, you
better take care of your security yourself. Use OptiPhone!

=== IMPORTANT INFORMATION. PLEASE READ ===

Voice over Internet Protocol (VoIP) and Cellular Data Networks:
Please note that some mobile network operators prohibit or restrict the
use of VoIP in their networks. You might not be able or allowed to use
VoIP in the network of your operator. Also your operator might charge
extra fees for the use of VoIP. By using OptiPhone you agree to comply
with all respective regulations imposed by your cellular network
operator and agree that Khaoticen will not be held responsible for any
charges, fees or liability imposed by your operator for using OptiPhone
with their cellular data network.

Encrypted Phone Communication:
OptiPhone securely encrypts the phone conversation with your partner.
Encrypting communication or even the possession of a copy of OptiPhone
might be illegal in some countries or regions. It is your liability to
check if the use or possession of a copy of OptiPhone is legal for you in
any situation. Please check any legal restrictions before downloading
OptiPhone. Also make sure to inform yourself about any restrictions that
might apply in foreign countries before taking a copy of OptiPhone into
these countries or making a secure phone call in these countries. Also
taking a copy of OptiPhone into a foreign country might be illegal due to
export restriction