Build VoIP calling apps on Android using Telnyx WebRTC SDK. Covers authentication, making/receiving calls, push notifications (FCM), call quality metrics, and AI Agent integration.
SkillScore91Maintained
Automatic
◆Coding pack
Last verified 8/22/2026
What it changes
Passed 20 of 22 test cases with the skill, and 5 of 22 without it.
Without skill23%
With skill91%
Checks it passed that the model alone missed
Implements the TxLogger interface.
Collects events from socketResponseFlow.
Instantiates TokenConfig passing sipToken.
and 22 more in the full report
16 fixed4 passed either way1 still failing1 broke
Pass-rate lift
+68 pp
Tokens
+199%
Agent turns
0%
Response time
-55%
Model gemini-3.6-flashMeasured 8/22/2026v120 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 16 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 16
Prompt
How do I explicitly set the Telnyx RTC server connection region to EU West in the Android client configuration?
What was checked, without and with the skill
Checked
Without skill
With skill
Sets region = Region.EU_WEST inside the configuration object.
Missed
Passed
case-19 · gemini-3.6-flash · 8/22/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md709 lines2 files
Telnyx WebRTC - Android SDK
Build real-time voice communication into Android applications using Telnyx WebRTC.
Prerequisites: Create WebRTC credentials and generate a login token using the Telnyx server-side SDK. See the telnyx-webrtc-* skill in your server language plugin (e.g., telnyx-python, telnyx-javascript).
Installation
Add JitPack repository to your project's build.gradle: