AccountChannelRequest.audio_call
Description:
[ Version ( since = "0.19.0" ) ]
public AccountChannelRequest.audio_call (Account account, int64 user_action_time)
Convenience function to create a new AccountChannelRequest object which will yield a Call channel, initially carrying audio only.
After creating the request, you will usually also need to set the "target" of the channel by calling one of the following functions:
- set_target_contact - set_target_id
To call a contact, either use 
        set_target_contact or one of the generic methods that takes a handle type argument. To check whether this is possible, use 
      supports_audio_call with handle_type
       set to CONTACT.
In some protocols, it is possible to create a Call channel without setting a target at all, which will result in a new, empty conference call.
      To test whether this is possible, use 
        supports_audio_call with handle_type set to 
        NONE.
Parameters:
| account | 
           a Account  | 
      
| user_action_time | 
           the time of the user action that caused this request, or one of the special values 
            USER_ACTION_TIME_NOT_USER_ACTION or 
              | 
      
Returns:
| 
           a new AccountChannelRequest object  |