https://telecom.economictimes.indiatimes.com/news/trai-chairman-bats-for-use-of-locally-made-gears-for-core-telecom-networks/73509222
Trai chairman bats for use of locally made gears for core telecom networks, ETTelecom
He said that company's might lose control over some peripheral devices, handsets etc but "can't afford to lose control on the core network of yours".
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https://developer.android.com/develop/connectivity/telecom/voip-app/telecom?authuser=9
Core-Telecom | Connectivity | Android Developers
This document details how to integrate your calling application with the Android platform using the Core-Telecom library, covering setup, call management,...
core telecomandroid developersconnectivity
https://hsdm.dorsal.polymtl.ca/
Software Debugging and Monitoring for Heterogeneous Many-Core Telecom Systems |...
software debuggingcore telecommonitoringmanysystems