ProCall Mobile

Client
estos GmbH
Platform
iOS & Android
Industry
telecommunications
Year
2017
Our achievements
  • Development of the operating concept
  • Technical implementation
  • Code reviews and test automation
  • Product launch and continuous development

The client

The company estos GmbH is a provider of standard software in the field of telecommunications (Unified Communications) and can look back on 20 years of company history. The product range includes enterprise applications as well as middleware and services from the cloud. Sales take place via multipliers such as resellers and distributors or in the form of white label solutions.

The challenge

For the 6th generation of its UC communication solution, estos had the mobile app completely redesigned. Usability was the top priority in the implementation of the latest product generation. To ensure this, the app was redeveloped from the ground up. We developed a new operating concept and implemented essential new features, namely IP telephony (VoIP) directly in the app.

This project was implemented in direct collaboration with the client’s development team.

1,000,000 successful calls

This is the amount of calls clients have already made using the new app. In addition to calls to the classic telephone network, peer-to-peer video chats are also supported.

Range of functions

As enterprise software, the solution is aimed at corporate clients and must provide extensive functionality. Among other things:

  • Video telephony
  • VoIP / IP telephony in the fixed network
  • Instant messaging
  • Contact search in CRM & Co
  • Call journal
  • Presence management
  • Call forwarding & remote office
  • Telephone control (CTI)
  • Automatic server search
  • For OnPremise and Hybrid Cloud (UCConnect)

Technologies employed

  • Native iOS development with Swift 3 and Cocoa Touch
  • Native Android development with Java and Kotlin
  • WebRTC for Voice & Video
  • iOS CallKit & Android ConnectionService for a native call experience
  • VoIP Push for super fast call signalling
  • Firewall & NAT traversal with ICE (STUN/TURN)

Convinced?

Come have coffee with us!

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