🚀 CALL-E Android SDK v2.1 Released — Full CALL-E V2 API Support, Streaming Events & Hardened Security

[tensormind-tech]

🎉 CALL-E Android SDK v2.1 is officially here!

We're thrilled to announce the release of calle-android-sdk v2.1.0 — fully upgraded and compliant with the CALL-E V2 API specification (/v2/calls)!

This release brings comprehensive support for structured result schemas, asynchronous call lifecycle event streaming, automatic idempotency guarantees, and enterprise-grade on-device security.

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🌟 What's New in SDK v2.1

1. ⚡ Complete CALL-E V2 API Support (POST /v2/calls)

• Migrated to asynchronous dispatching (HTTP 202 Accepted) with immediate access to call resource ID and billing ID.
• Automatic Idempotency: Every dispatch automatically generates and injects a unique Idempotency-Key header with replay conflict detection.

2. 📋 Structured Scalar Schemas (ResultSchema)

• Full support for CALL-E V2's strict closed JSON schema extraction rules:
  • Validated scalar properties: string, boolean, integer, number.
  • Enforced additionalProperties = false to eliminate schema validation errors.
  • Zero-config default schema (summary + task_completed) ready out of the box.

3. ⏱️ Accurate V2 Readiness Polling (pollCallStatus)

• Real-time reactive Kotlin Flow polling.
• Adheres strictly to CALL-E V2 readiness rules: polling continues while result_status == PENDING, completing once the post-call AI analysis is AVAILABLE, UNAVAILABLE, or NOT_APPLICABLE.

4. 📡 Live Lifecycle Events Streaming (pollCallEvents)

• Cursor-tracked reactive Flow streaming real-time events (call.ringing, call.connected, call.speech, call.asr, call.completed) with duplicate filtering.

5. 🛑 Early Call Cancellation

• Cancel queued or scheduled call runs before carrier dispatch via client.cancelCall(callId).

6. 🔒 Hardened Security & Zero Telemetry

• Hardware-Backed AES-256 Storage: Credentials encrypted at rest with Android Keystore (MasterKey.Builder + AES-256-SIV / AES-256-GCM).
• No Plaintext Fallback: Fails safely with CredentialStorageException rather than degrading to unencrypted storage.
• Zero Telemetry: No analytics, trackers, or telemetry of any kind.
• Privacy Guard: Native device contacts are resolved strictly on-device and never leaked to external LLMs.

7. 🎨 Jetpack Compose Status Badge (CallEStatusBadge)

• Modern, animated Material 3 status badge displaying live call states (DISPATCHING, CALL_IN_PROGRESS, EXTRACTING_RESULT, SUCCESS, UNAVAILABLE, FAILED).

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📦 Quick Integration (2 Minutes)

1. Add JitPack repository in settings.gradle.kts:

dependencyResolutionManagement {
    repositories {
        google()
        mavenCentral()
        maven { url = uri("https://jitpack.io") }
    }
}

2. Add dependency in your app's build.gradle.kts:

dependencies {
    implementation("com.github.Baklolman69:calle-android-sdk:2.1.0")
}

3. Dispatch a call:

val client = CallEClient(apiKey = "YOUR_CALLE_API_KEY")

lifecycleScope.launch {
    val request = CallRequest(
        toPhoneNumber = "+15550199000",
        promptInstructions = "Ask opening hours tonight and vegetarian menu items."
    )

    val result = client.dispatchCall(request)
    result.onSuccess { response ->
        println("Call dispatched! ID: ${response.id}")
        
        // Track live status reactively
        client.pollCallStatus(response.id).collect { status ->
            if (status.isResultReady) {
                println("Summary: ${status.bestSummary}")
            }
        }
    }
}

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💬 We'd Love Your Feedback!

Have ideas for new features? Found a bug? Building an exciting voice agent app?
Drop your thoughts, questions, or showcase your projects right here in GitHub Discussions!

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Happy building! 🚀