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ARKFone is Audio / Video next generation SIP based softphone. It is a generic SIP client for Android 1.5 or higher versions. It can work with any SIP server without through any type of network, such as 3GPP LTE, GPRS, and Wireless LAN (WIFI), CDMA2000 or fixed line.

It support the following codecs:-

Supported Audio Codec:

G.711 , G.722 , GSM, PCMA , PCMU, Speex (8Khz),Speex (16Khz), Speex (32Khz)

Supported Video Codec:

H.263, H.264, Theora, MP4V-ES, VP8

Video will work on the normal SIP stack without any configurations on the standard SIP server

Tested SIP servers:

Cisco CUCM, Cisco CME, Asterisk and OpenSIP also work with any standard SIP proxy.

Main features:

* Making and receiving VoIP audio and video calls.

* Sending and receiving Instant Messages.

* Connect to any standard SIP video phone.

* Connectivity through WIFI and 3G

* Integrated contacts from the phone

* Loudspeaker

* Favorites

* Time, call status logs

* Last calls log

* Redial

* Work in background mode (only with servers allowed SIP via TCP)

* Multiple accounts support (PAID Version)

* File Sharing (PAID Version)

Note:

1. You need to have account from VoIP provider in order to use this software.

2. Please, check your cellular operator's terms of agreement to make sure they allow sip calls on their network

What's New in the Latest Version Ver3.0

- Compatible with Android 4.x devices
- Multiple Accounts
- Video Calling
- Ads free environment