KeyToPushToTalk 

Namespace: SynicSugar.RTC

#if ENABLE_LEGACY_INPUT_MANAGER public KeyCode KeyToPushToTalk = KeyCode.Space; #else public UnityEngine.InputSystem.Key KeyToPushToTalk = UnityEngine.InputSystem.Key.Space; #endif

Description 

Key for PushToTalk.
VC is sent only when user is pressing this button, and when releases, automatically mutes.

using SynicSugar.RTC;
using UnityEngine;

public class VCSample : MonoBehaviour {
    void Start(){
        RTCManager.Instance.KeyToPushToTalk = KeyCode.T;
    }
}