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Sip gateway failed to connect call
# support
z
I'm using a Vapi number and running the scenario from make. It shows me everything runs successfully on make but no call received. When I check call logs on Vapi, shows me that Ended reason is "Sip gateway failed to connect call", so what's the issue? let me know if there's specific steps to follow. Thank you.
v
message has been deleted
@Zeyad Moheb It sounds like there may be an issue with the SIP configuration or network connectivity. Here are some steps you can follow to troubleshoot the problem: 1. **Check SIP URI**: Ensure that the SIP URI in the 
sipUri
attribute within the 
forwardingPhoneNumbers
array is correctly formatted and points to a valid SIP address. 2. **Network Configuration**: Verify that your network allows traffic on the SIP protocol and that any firewalls or NATs are configured to allow SIP messages to pass through. 3. **SIP Server Configuration**: Make sure your SIP server or PBX is configured to accept calls from Vapi's servers and that it is not rejecting the incoming INVITE requests. 4. **SIP REFER Handling**: Confirm that your system is set up to handle SIP REFER messages, as Vapi uses SIP REFER to transfer calls. 5. **Credentials and Authentication**: If your SIP endpoint requires authentication, double-check that the credentials provided to Vapi are correct. 6. **Codecs Compatibility**: Ensure that the codecs used by Vapi are supported by your SIP endpoint. 7. **Logs and Error Messages**: Review any logs or error messages from your SIP server for additional clues as to why the connection is failing. If you've gone through these steps and are still experiencing issues, it may be best to reach out to Vapi support for further assistance. They can provide more detailed troubleshooting based on the specifics of your setup and the call logs.
You can continue this conversation by mentioning me in the message.
z
That’s too wide to look through each, I’ll need to know each step specific detail to make sure all is going smooth and I guess it would be something not that big deal at the end, so is there more narrowing down to this?
@User
s
@Zeyad Moheb could you share the call ID so I can take a look at what might have gone wrong?
z
It is somehow solved when I changed numbers to call to US numbers, so here's the question. Can a Vapi number dial international numbers? if it does how to enable it?
v
Nope, you can only call to US and Canada Number.
z
So why is that, and is there a way to call internationally?
v
Hello Zeyad, to make international calls, you must purchase a phone number directly from the telephony company. Vapi acts a number reseller, and there are restrictions imposed by the telephony company. That's why you cannot make international calls using numbers purchased from Vapi.
z
Makes sense, thank you 🙏🏼
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