Use full E1 30 channels broadcast mode

Hi
Ive already installed vicidialnow with a Sangoma E1 card connected to a TELCO, ive already created my campaign and created the remote agent for the messsage to be played, but cant make it to use the 30 channels at once, only one at the time.
What should i do to use the full E1.
Ive already installed vicidialnow with a Sangoma E1 card connected to a TELCO, ive already created my campaign and created the remote agent for the messsage to be played, but cant make it to use the 30 channels at once, only one at the time.
What should i do to use the full E1.