There is a lot of disinformation her left me resolve it for you.
The Prophet Muhammad (peace and blessings be upon him) was given Revelation by the Angel Gabriel. Who appeared to him and commanded him to read, he said I am not a reader, the angel embraced him and commanded again. This happened three times. The final time he released him, he then recited the words of God, the Quran.
After this momentous event there was a gap in revelation, due to the intensive nature of bearing the Quran. He was so sad at being separated from which he was joined, to God. Then Revelation came again and continued up until his passing away.
There was no frothing at the mouth and the devil cannot give revelation, all he can do is whisper. And as per usual you adding to whats not there, aren't you. For a start the devil would not command you to read in the name of your lord , God, he wants to take you away from God. What was the first revelation? "Read, in the name of your Lord, the one who man mankind from a seed, Read And it is thy Lord the Most Bountiful, Who taught by the pen, Taught man that which he knew not.” Sura Alaq.
So according to you Satan calls to God???!?!?!? Of course Satan calls to himself, your accusation is baseless my friend.