Zoho page 'unable to make a call to xxxx(‘dialed number’)'

Zoho page 'unable to make a call to xxxx(‘dialed number’)'

I am useing Asterisk and zoho crm. now I configed the authtoken  key ,and the Asterisk server details .
And I click the phonenumber my extensitons rings, when I pick up,it can call out to the dialed number,
but the zoho web page show unable to make a call to xxxx(‘dialed number’).

When I change the trunk name to the dialed number.

it's runing will,no errors.

So  who can help me to reslove this problem?

Thanks a lot.