If we have God's phone number why does He put my call on hold?

‘Call to Me, and I will answer you, and show you great and mighty things, which you do not know.’
Jeremiah 33:3

Is this verse God's "phone number?"

Why does God rarely seem to answer His phone?

Resources:

https://96tolife.blogspot.com/2018/02/gods-phone-number.html?m=1

https://www.livinggodministries.net/living_god_ministries/radio_archive/loneliness.htm