Trouble in asterisk TRUNKS, please help me to

Look,i am using SIP trunks the [trunk1] is connected to one voip provider and the [trunk2] is connected to other different provider, now when i call via trunk1 i am able to get 2 way audio i mean, “You hear me and i hear you” but when i dial using the trunk2 i can’t hear the ringing tone when dialing and when the called party answer the call he only can hear me and i can’t hear them.

I am using SIP trunks in both cases

Please, what can i do to fix the trouble?