DS18mo can say 20 words max.

I was talking with DS on the phone yesterday. He said Mama to me a couple of times. Then all of a sudden, he said Dada to me and laughed hysterically.

Was he confused my voice with his dad?!? I hope an 18-month-old would know the difference between his father's and mother's voices. Or was he trying to be funny?

Because of his limited vocabulary, asking him about it would be fruitless.