Node: Outbound Calls Rejected (Code: D03)
If you're experiencing issues with outbound calls from your business phone system being rejected, this guide is for you. This issue may present itself as failed calls, rejections, or specific SIP errors such as 403, 404, 488, or 503. If you're unable to make external calls, you've come to the right place.
Please note: This guide does not apply if your only symptom is inbound delivery issues or if calls connect but with audio trouble.
To help us resolve the issue, we'll need some information from you. This includes the number you were trying to dial, the caller ID of the outbound call, the time of the call, the SIP response you received, details about your SIP trunk's authorization and routing, the IPs allowed for outbound calls, and any recent changes made to your PBX/SBC system.
With this information, we can work together to get your outbound calls up and running again.
For more specific information on outbound SIP trunk calls rejected, please visit our related article.
Related Article: Outbound SIP Trunk Calls Rejected
Parent Category: SIP Trunks