C# SMS API - keepalive method

This method can be used to "ping" the server. Keepalive can be used to detect if the server is available or not. Usually you will not use this function.

	Name	Description
	bool keepAlive();	Use this function to check if the SMS Gateway is available. Parameters This function does not have any parameters Returns The function returns true if the server is on-line. Example bool ret=keepAlive();