Moscow, Moscow, Russian Federation
1,530/yr · 100%
$60/hr · Starting at $1,500
We are also talented engineers on VOIP & SIP etc. We can develop mobile and web/desktop video/voice conferencing app also can jhost and maintain its servers - Jitsi Meet - Wire - Signal - Linphone - T…
Volgograd, Volgograd, Russian Federation
$50/hr · Starting at $100
More than 30 Asterisk servers under administrating, more than 10 maded VoIP servers from zero. IVR, Backup, voice recognition, dialplans, call recording, etc.
Nashik, Maharashtra, India
$10/hr · Starting at $25
For all types of office & regular work,also work of courts Papers,Contracts deals make at our sides,
Belgrade, Serbia, Serbia
$35/hr · Starting at $25
10+ years Linux / VoIP / Asterisk / FreeSwitch hands-on experience. Also, vast knowledge of SIP protocol and SIP proxy routing using Kamailio
London, England, United Kingdom
$20/hr · Starting at $25
Experienced Migration Specialist with a demonstrated history of working in the information technology and services industry. Skilled in Cisco Contact Centre, IP Telephony, Contact Centre UCCE, Twilio…
Madurai, Tamil Nadu, India
$12/hr · Starting at $100
Functional, Regression, Sanity Testing QXDM (Qualcomm chipset), SPRDTRUM (Spreadtrum chipset), MDTK(MediaTek chipset). MySQL, Putty, JRockIt, Jazz(Team server), ECLIPSE, Unified communications,Recordi…
Ghaziabad, Uttar Pradesh, India
$25/hr · Starting at $25
we customise SIP based VOIP app as per customer requirement we use PJSIP/Doubango/LinPhone SIP stack etc. we have developed our own SIP tunnel to transfer SIP/RTP/TRCP traffic in side tunnel so that S…
Chennai, Tamil Nadu, India
5+ years of experience in VOIP, PBX, call centre solutions, unified communications, Freepbx, vicidial, IP phones, VOIP gateways FXO,FXS, GSM,PRI, IVR solutions, Auto dialler implementation, trouble sh…
Reading, England, United Kingdom
$5/hr · Starting at $25
Expertise in diagnosing VoIP problems with the SIP signalling protocol. Help with understanding packet captures and root cause analysis of SIP interworking faults.
KANGRA, Himachal Pradesh, India
$10/hr · Starting at $30
I can provide you good support and able to complete your project within given time frame. Please give a chance and rest everything is on me.
Dhaka, Dhaka, Bangladesh
$50/hr · Starting at $500
What is the Asterisk SIP Settings Module used for? The Asterisk SIP Settings Module is used to configure the default settings used for SIP calls. Since most VOIP calls are sent using SIP, these setti…
Wola Mrokowska, Suwalki, Poland
$40/hr · Starting at $500
We offers video conferencing system using Webrtc and SIP. We used Kurento Media Server for webrtc. Also Asterisk, Freeswitch is used for SIP. Please check https://www.pointnurse.com/
Faridabad, Haryana, India
$20/hr · Starting at $100
I have experience over carrier level system design for telecom companies. VoIP, GSM, WebRTC, Asterisk, Telephony, Billing System, complete telephony system design, IVR system design, System end to end…
Ahmedabad, Gujarat, India
I have experience in VoIP, FreeSwitch, Opensips, Kamailio, Asterisk, ASTPP, RTPproxy, RTPengine, FreePBX, A2billing, Linux, Opensource Consulting, MySQL, PHP, yii framework, Wordpress, MySQL, Android.…
Saint Louis, Missouri, United States
$70/hr · Starting at $500
20 years experience in IT Infrastructure with the following knowledge and experience VoIP, SIP, IVR, contact center (design, implementation and support) Triage and issue resolution Networking Project
Samara, Samara, Russian Federation
$69/hr · Starting at $199
Asterisk VoIP FreePBX 3CX FreeSwith Issabel SIP FusionPBX PBX Kamailio VoIP Asterisk, 3CX, Issabel, Elastix, FreePBX, FreeSWITCH, FusionPBX, Kamailio, OpenSIPS, OpenSER, FXO, FXS, E1, T1 SS7 ISDN - my…
Rosario, Santa Fe, Argentina
ID Verified
Design, install and support SIP VoIP systems. Asterisk, FreePBX, Elastix, Issabel, 3CX Multi brand IP Phone and Softphones support.
Nha trang, Khánh Hòa, Vietnam
$10/hr · Starting at $1,000
May 2010 - August 2011 Projected wooden buildings from SIP panels technology. Drafted building designs using AutoCAD, 3d visualization made using Artlantis Studio
Olympia, Washington, United States
$65/hr · Starting at $65
I am a former military full stack engineer with strong networking and WebRTC skills. I have an advanced degree in software development and a documented history running a software development company.
Karachi, Sindh, Pakistan
$10/hr · Starting at $200
My focus towards most important part of any company that is communication. Every organization wants to cut their expenses without losing advanced technology. My 4W concept will help to understand the