volume

import { RelayClient } from '@signalwire/sdk';
const client = new RelayClient({
  project: process.env.SIGNALWIRE_PROJECT_ID!,
  token: process.env.SIGNALWIRE_API_TOKEN!,
  contexts: ['default']
});
client.onCall(async (call) => {
  await call.answer();
  const action = await call.play(
    [{ type: 'audio', url: 'https://example.com/hold-music.mp3' }],
    { loop: 0 },
  );
  // Increase volume
  await action.volume(10.0);
  // Decrease volume
  await action.volume(-5.0);
});
await client.run();