No outgoing audio between voxalot accounts

[wycodreams]

I dont know what happen.
I have 4 voxalot account in two rt31p2 devices. In the past, it works fine, but now, when i try to call to my voxalot accounts (device1 to device 2) or (device 2 to device 1), my calls dont have outgoing audio. I can hear but they dont hear me. And when they call me, they can hear me but i dont hear they. My incoming and outgoing calls from others providers working fine, it have sound in both legs.
Only 1 voxalot account work fine. From this account in device 1, i can hear and they can hear me, but only in outgoing calls from this account.
Both devices is configured equal, is the same configuration. Please help me. Thank you.
I try my accounts in sjphone with the same answer.