Can’t say for all of them. But this is not uncommon or unusual practice.
Just wanted to add for enlightment.
The person on speaker says:
" Kia Noor Ki Baarish Ho Rahi Hai. Aap Log Raasta Chor ke Baithen. Woh Tashreef La Rahe Hain. Woh Hamare Darmiyaan Hain. Woh Humen sun Rahe Hain. Naarae Risaalat! Ya RasoolAllah! (SAW)."