CelloIP Technologies

VoIP, Android , iOS , ReactJS , ReactNative and PHP Expert


CelloIP Technologies is a VoIP, web & marketplace development, mobile application development, Software Development, Open Source Customization, E-Commerce Marketplace Solutions and Digital Marketing. Our experise : VoIP : Expert in Asterisk , Freeswitch , ASTPP , Opensips, Kamailio , A2Billing Mobile Application Development : Android and iOS Mobile Application development for startup to enterprise level companies VoIP SIP Mobile Dialer : Can provide custom mobile Application dialer , Can do customisation of Linphone or PJSIP Chat Application : Can provide custom Chat Application like WhatsApp , WeChat or Viber based on Firebase or XMPP messaging Chat Server : Can provide custom solution for Chat Servers like ejabberd, MongooseIM or Opensips we have 8+ years of expertise in VoIP , Mobile App development and website development. You have Idea to Innovation and Increase your business as well as your other requirement and we have Experience to Fulfil your requirement and take your Idea over the Globe. We Have Ability and Experience to Understand your requirement and give result-oriented solution. We know value of your Business and can understand your Dream of Achievement through your business. We have very good experience with VoIP mobile development, Android/iOS application development and Web application developments with specialty in developing Asterisk , Freeswitch , Opensips , Kamailio and Mobile VoIP based solution. We have worked on 20+ Linphone and PJSip Based Mobile VoIP Diallers with 100% Client satisfaction. I can also provide customized Class-4 and Class-5 Softswitch for your voip business. Please refer below services I can provide. - Linphone Mobile VoIP Dialler development - PJSip Mobile VoIP Dialler development - Asterisk Server Installation, development , customization and maintenance. - FreeSwitch Server Installation, development , customization and maintenance. - Kamailio and OpenSips Server Installation, development , customization and maintenance. - Android Application development - iOS Application development - Web Application Development - RectJS and ReactNative Web and Mobile Application development. - Testing and bug fixing in existing application. - Consulting for ongoing project. - Can provide consulting for projects related to Android, iOS, ReactJS, Asterisk , FreeSwitch , Opensips, Kamailio and A2Billing. You can message to discuss your requirements in detail.

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Network & System Administration

VoIP Server Installation, Configuration and maintenance. We are expert in area of VoIP infrastructure and development. We have experience in FreeSwitch, Asterisk, Kamailio , Opensips, A2Billing, Class 4 SoftSwitch, Class 5 Softswitch and customisation of VoIP Open source VoIP servers.


iOS Development
VoIP Administration
React Native
Core PHP
Android App Development
Rising Talent

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Upwork activity

Hourly rate

$20.00 - $25.00

Minimum project size


Total earned


Total hours


Total jobs


Member since

Sep 12, 2019

Company information

Agency size

2-10 workers

Year founded


Client focus

Large business

Medium business

Very small business

Small business

English: Fluent