Asterisk 1.4 & Zoho CRM ( Already integrated , just need help to fix some problems)

Hello, we created the phonebridge, now there are some problems to fix: 1) When the call starts on zoho the pop up shows alway "in connection". From logs we can see that - On RINGING state, dialing channel is null - On UP state, linked channel is null - on HUNGUP state, dialed channel is null 2) When the softphone rings (inbound call) on zoho doesn t appear any pop up Will be provided a vpn to access Asterisk pbx and admin login to access zoho crm Thanks