Hadith no. 614 is a repeat. Read it here.
Once the Iqama was pronounced and the Prophet was talking to a man (in a low voice) in a corner of the mosque and he did not lead the prayer till (some of) the people had slept (dozed in a sitting posture) .
That man kept talking to the Prophet (SAW) for a long time after the Iqaamah, so some people dozed off while waiting for him..
Narrated Anas bin Malik:
Once Iqama was pronounced a man came to the Prophet and detained him (from the prayer).
So talking IS allowed after Iqaamah. That means, before Iqaamah, you’re not supposed to talk. :)
The time between the Adhaan and Iqaamah is of immense importance. Your prayers are accepted in that time. Why waste those golden moments by talking about random and useless stuff?