team-telnyx/telnyx-voice-advanced-java
api/java/telnyx-voice-advanced-java/SKILL.md
Advanced call control features including DTMF sending, SIPREC recording, noise suppression, client state, and supervisor controls. This skill provides Java SDK examples.
$ install --global
skillsauthnpx skillsauth add team-telnyx/telnyx-toolkit telnyx-voice-advanced-javaInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Last scanned: Apr 15, 2026, 4:20 AM22.8s1 file scanned
SKILL.md
- name:
- telnyx-voice-advanced-java
- description:
- >-
- author:
- telnyx
- product:
- voice-advanced
- language:
- java
- generated_by:
- telnyx-ext-skills-generator
<!-- Auto-generated from Telnyx OpenAPI specs. Do not edit. -->
Telnyx Voice Advanced - Java
Installation
// See https://github.com/team-telnyx/telnyx-java for Maven/Gradle setup
Setup
import com.telnyx.sdk.client.TelnyxClient;
import com.telnyx.sdk.client.okhttp.TelnyxOkHttpClient;
TelnyxClient client = TelnyxOkHttpClient.fromEnv();
All examples below assume client is already initialized as shown above.
Update client state
Updates client state
PUT /calls/{call_control_id}/actions/client_state_update — Required: client_state
import com.telnyx.sdk.models.calls.actions.ActionUpdateClientStateParams;
import com.telnyx.sdk.models.calls.actions.ActionUpdateClientStateResponse;
ActionUpdateClientStateParams params = ActionUpdateClientStateParams.builder()
.callControlId("call_control_id")
.clientState("aGF2ZSBhIG5pY2UgZGF5ID1d")
.build();
ActionUpdateClientStateResponse response = client.calls().actions().updateClientState(params);
SIP Refer a call
Initiate a SIP Refer on a Call Control call.
POST /calls/{call_control_id}/actions/refer — Required: sip_address
import com.telnyx.sdk.models.calls.actions.ActionReferParams;
import com.telnyx.sdk.models.calls.actions.ActionReferResponse;
ActionReferParams params = ActionReferParams.builder()
.callControlId("call_control_id")
.sipAddress("sip:[email protected]")
.build();
ActionReferResponse response = client.calls().actions().refer(params);
Send DTMF
Sends DTMF tones from this leg.
POST /calls/{call_control_id}/actions/send_dtmf — Required: digits
import com.telnyx.sdk.models.calls.actions.ActionSendDtmfParams;
import com.telnyx.sdk.models.calls.actions.ActionSendDtmfResponse;
ActionSendDtmfParams params = ActionSendDtmfParams.builder()
.callControlId("call_control_id")
.digits("1www2WABCDw9")
.build();
ActionSendDtmfResponse response = client.calls().actions().sendDtmf(params);
SIPREC start
Start siprec session to configured in SIPREC connector SRS.
POST /calls/{call_control_id}/actions/siprec_start
import com.telnyx.sdk.models.calls.actions.ActionStartSiprecParams;
import com.telnyx.sdk.models.calls.actions.ActionStartSiprecResponse;
ActionStartSiprecResponse response = client.calls().actions().startSiprec("call_control_id");
SIPREC stop
Stop SIPREC session.
POST /calls/{call_control_id}/actions/siprec_stop
import com.telnyx.sdk.models.calls.actions.ActionStopSiprecParams;
import com.telnyx.sdk.models.calls.actions.ActionStopSiprecResponse;
ActionStopSiprecResponse response = client.calls().actions().stopSiprec("call_control_id");
Noise Suppression Start (BETA)
POST /calls/{call_control_id}/actions/suppression_start
import com.telnyx.sdk.models.calls.actions.ActionStartNoiseSuppressionParams;
import com.telnyx.sdk.models.calls.actions.ActionStartNoiseSuppressionResponse;
ActionStartNoiseSuppressionResponse response = client.calls().actions().startNoiseSuppression("call_control_id");
Noise Suppression Stop (BETA)
POST /calls/{call_control_id}/actions/suppression_stop
import com.telnyx.sdk.models.calls.actions.ActionStopNoiseSuppressionParams;
import com.telnyx.sdk.models.calls.actions.ActionStopNoiseSuppressionResponse;
ActionStopNoiseSuppressionResponse response = client.calls().actions().stopNoiseSuppression("call_control_id");
Switch supervisor role
Switch the supervisor role for a bridged call.
POST /calls/{call_control_id}/actions/switch_supervisor_role — Required: role
import com.telnyx.sdk.models.calls.actions.ActionSwitchSupervisorRoleParams;
import com.telnyx.sdk.models.calls.actions.ActionSwitchSupervisorRoleResponse;
ActionSwitchSupervisorRoleParams params = ActionSwitchSupervisorRoleParams.builder()
.callControlId("call_control_id")
.role(ActionSwitchSupervisorRoleParams.Role.BARGE)
.build();
ActionSwitchSupervisorRoleResponse response = client.calls().actions().switchSupervisorRole(params);
Webhooks
The following webhook events are sent to your configured webhook URL.
All webhooks include telnyx-timestamp and telnyx-signature-ed25519 headers for verification (Standard Webhooks compatible).
| Event | Description |
|-------|-------------|
| callReferStarted | Call Refer Started |
| callReferCompleted | Call Refer Completed |
| callReferFailed | Call Refer Failed |
| callSiprecStarted | Call Siprec Started |
| callSiprecStopped | Call Siprec Stopped |
| callSiprecFailed | Call Siprec Failed |
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