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The Media5-fone® is a SIP client app that enables users to make and receive VoIP calls over Wi-Fi, 3G, 4G, and LTE networks. It is interoperable with most IP-PBX systems and will transform your smartphone into IP-PBX phone extension.

The Media5-fone® allows Service Providers to fully realize the commercial potential of mobility and VoIP.

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Media5-fone   Media5-fone


Features Supported Devices Getting Started Comparison Documentation Quick Links

Easy to setup & configure:
  • Flexible Codec Configuration and Prioritization.
  • Authentication Username.
  • Dial Plan.
  • Pre-Configured List of SIP Service Providers.
  • Multiple SIP Accounts.
  • Selectable Ring Tone.
  • Customizable Tab Bar.
  • Acoustic Echo Cancellation / Automatic Microphone Gain Control
  • Highly interoperable
Telephony/Communications Features:
  • Make and Receive VoIP Calls over Wi-Fi, 3G, 4G, and LTE networks.
  • SIP URI Dialing Support (e.g. sip:
  • Call Waiting / 2nd Call / Call Toggle.
  • Audio Routing (Loudspeaker / Handset / Wired Headset) / Mute.
  • Complete access to the native contact list.
  • Favorites / Speed Dial.
  • Call History / Contact Management.
  • Voicemail Integration / Notification (SIP MWI).
  • Hold / Resume / Redial.
  • In-call contact display picture.
  • Configurable DTMF (SIP INFO / RFCs 2833/4733 / RTP Inband).
  • Included: G.711 (uLaw &ALaw), iLBC.
  • Purchasable: Enhanced G.711, G.722 (Wideband), iSAC (HD), G.729 Annex-A & B.
  • Support for UDP and TCP.
  • Codecs: In-App Purchase Options Comparison.
  • Call Waiting / 2nd Call / Call Toggle / Call Transfer / Conference.
  • Switch between Multiple SIP accounts (one registration at a time).
  • Secured SIP Transport (TLS).
  • Secured Encrypted Media (SRTP) with SDES.
  • Languages: English, French, German, Spanish, Portuguese, Japanese.

Supported Devices

  • iOS:
    • iPhone, iPad, and iPod Touch. (Visit us on the AppStore for a list of supported devices).
  • Android:
    • Selected smartphones and tablets (Visit us on Google Play for a list of supported devices).


Getting Started is a easy as 1,2,3


Get the application!
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Install the app: Sync your device.
Configuration: Please download the User Guide ( For iPhone, For Androïd) for detailed instructions and useful information.


Allowing VoIP over 3G – Important note
Some mobile network operators may prohibit or restrict VoIP (Voice over Internet Protocol) over their data network or impose additional fees and/or charges when using VoIP over their network. Please ask your mobile network operator before enabling the VoIP over 3G feature. Please contact the Media5-fone Technical Assistance Center for any concern related to the VoIP over 3G.

Getting Help
If you have followed the procedures in the User Guide but still need help with the configuration, you can contact our Media5 Support Team.

In-App Purchase Options Comparison

The table below highlights the features that can be purchased and unlocked through Android Market or App Store to make your Media5-fone more powerful.






 Enhanced G.711, G.722 & iSAC


 G.729 A&B





 Make/Receive Call

 2nd Call


 Call Waiting


 Call Transfer


 3-way Local Conference Call




 Multiple SIP Accounts


 No Ad Banner


Security (TLS & SRTP w/SDES)



List of Options
O1: G.729ab codec can be optionally purchased.
O2: Supplementary Telephony Services can be optionally purchased (Telephony Pack).
O3: Support of multiple SIP accounts and Ad-free application can be optionally purchased (Unlock).
O4: Support of SIP over TLS and SRTP w/SDES for secure VoIP Calls can be optionally purchased (Secure Comm. Pack).

  Please select the documentation category that you are looking for:

Manuals: Information supporting operational usage of the units

Media5-Fone Users Guide (For iPhone, For Androïd)