Encrypted SIP Softphone client

Avg Bid (USD)
Project Budget (USD)
$250 - $750

Project Description:
We need softphone client with encryption

Need these features.
Softphone with G.729 codec
Codec Supported Microsoft G723.1/G711
Call timer
Display Balance
Countdown call timer
Last Number Redial
Local signaling (Dial tone, busy, ring back, etc.) for user comfort
Touch Tone
Address Book
Sms support
call History
Microsoft Outlook Sync with Address Book
Micro Phone Volume Control
Speaker Volume Control
Speaker and Volume Progress bar
Small application
Work with any full-duplex sound card
UPNP NAT/Firewall support, stable SIP RTP ports
Auto-configuration of settings for easy deployment
Configuration Wizard
DNS support

Skills required:
Asterisk PBX, VoIP
About the employer:
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