Voip Software Jobs

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Fixed-Price - Entry Level ($) - Est. Budget: $750 - Posted
We have a content delivery system that integrates our clients in Africa to all Mobile Network Operators (MNO) to send contents via SMS, STK, USSD, IVR/OBD and WAP gateways. The Content delivery platform is highly scalable and extendable for SMS, STK, USSD, IVR/OBD and WAP services delivery. We need a full stack developer with Linux system administration experience in Telecommunication fields especially mobile VAS technologies Required skill sets: - Demonstrable experience developing with the LAMP stack (Linux, Apache, MySQL and PHP). Experience with other stacks (e.g. LEMP) a plus. - Linux – must be comfortable with the Linux terminal and be able to perform basic to advanced tasks from the terminal. Access to the VAS server is via the terminal only. - Linux - Networking (IPSec Tunnel, routing & troubleshooting, TCPDUMP , etc) - Linux - SysAdmin (ensure service OAM - support role, can set up cron, logrotate, backups, etc) - Web Server Technology – can set up, configure and troubleshoot an Apache web server. Working knowledge of Beanstalkd, Redis and Nginx is a plus. - SQL - Strong knowledge of SQL. MySQL is currently in use; experience with this or ability to pick up quickly is essential. - PHP Programming – Our Content Delivery platform is built with Yii2 Framework; experience with Yii2 is required. Knowledge of other MVC frameworks is a big plus, for future deployments. - SMPP: Working knowledge of SMPP is a must. Experience with Kannel integration & customization is critical. - Java Programming: can read/write Java code and develop with the Java Spring Framework. Part of our SMPP integrations is implemented in Java. Experience with implementing SMPP in Java is a definite plus. - Source Code Management: Experience with git in a team environment. Our source code repository is managed with git. - Containerization: We use deploy our integrations on Docker servers. Experience with Docker and Docker-compose on Linux is necessary. Knowledge of other container technologies is a plus. - Experience with Web API integration (in PHP and Java), and related technologies (Curl, SOAP, XML, JSON etc) SMSC, IVR, OBD,IBD, WAP, STK,USSD protocols handson experience
Skills: VOIP Software Apache CXF Docker Git
Fixed-Price - Expert ($$$) - Est. Budget: $50 - Posted
i want soft phone application that support vpn connectivity like the following http://www.linphone.org/ http://www.portsip.com http://www.voip-info.org/wiki/view/Open+Source+VOIP+Software http://www.c-sharpcorner.com/members/csilla-szabo-kozell http://voip-sip-sdk.com/p_332-voip-sdk-developers-guide-voip.html http://techipost.com/2010/11/12/open-source-pbx-soft-phone-in-c/ use one of above
Skills: VOIP Software .NET Framework Asterisk C#