Problem with Asterisk phonebridge

Problem with Asterisk phonebridge

Hello,

I have installed the Asterisk Phonebrige and connected it to Asterisk Manager.
I also have created a token in Zoho and implemented in the conf file.

When I make a inbound call, my phone is ringing and when I pick up  that call a small box in zoho is appearing with details about the customer who is calling.

However when I make a phone call from within Zoho by clicking on the green circle with the phone sign in it besides the phone number a small box is appearing in Zoho saying calling but my phone is not ringing.

When I take a look in the log file nohup.out I see a message "Channel 'SIP/4011'  is not available" (4011 is the extension which I am using). However Asterisk sip show peers shows that SIP/4011 is registered. (see attached file)

As far as I know I have set the right outgoingcallcontext in the conf file.

Can someone give me some idea's what may be wrong?