Symptom

When initiating a SIP call, the following error occurs:

"event":"CallDestroyed","reason_code":706,"reason_message":"Call Reached Maximum Inactive Duration",

Applies To

• SIP Interconnect

Resolution

Ensure you whitelist the IP address blocks provided by Vonage

Cause

SIP calls may be blocked due to security constraints in your environment, including but not limited to firewalls and session border controllers.

Additional Information

In order to obtain the IP address blocks, assuming you're an enterprise customer, you can login to tokbox.com/account and follow the instructions in the 'Getting the TokBox Allowed IP list' section here.