Hello friends, whenever I try to call any number from my VAPI, it always says that the customer did not answer. But when I try to call from my Phone, it works without any problems. There are no problems with the customer numbers here. please help. Call ID: 45dbcc93-0c95-42f1-81f0-cae8d33752fe 8d4e3bdb-d383-435f-b17e-091035d0c7fe 7e9481c2-f553-40cf-b95e-fddf8d63d9c9 24ab83e1-1cbe-49f0-812e-95bbbf3e87d9 08be5697-641a-4b5c-8c38-f3ad4dade2f3 de87bca5-8770-42f3-b2a8-2932c0e0ab10 9e107c8d-f175-4376-b572-9a926927f403 @Vapi @ https://cdn.discordapp.com/attachments/1374349233427185755/1374349234039423017/image.png?ex=682db9f7&is=682c6877&hm=b16828ddf3bd34292dc93219699196199d426adba6028de76f501337550ff5c6&

Suggestion: Check if your phone has granted all necessary permissions (especially microphone and network access) to the Vapi app or browser you are using. Sometimes, missing permissions or network restrictions on mobile devices can prevent calls from connecting, resulting in a

customer-did-not-answer

error. Try restarting your phone and ensuring you are on a stable network, then attempt the call again. If the issue persists, consider reaching out to [Vapi Support](https://docs.vapi.ai/support) with your call IDs for further investigation. Sources: - [Call ended reasons – customer-did-not-answer](https://docs.vapi.ai/calls/call-ended-reason) - [Vapi Support](https://docs.vapi.ai/support)

I mean, we configured a new SPI trunk called commpeak. When we try to call a customer using the Commpeak number, it shows that the customer did not answer the call. When we actually check, the call was not made. de0d5d8a-aae4-427a-8386-d79981d50b92 641a4ef2-799d-4095-bdb3-50faf245d1fb https://cdn.discordapp.com/attachments/1374349233427185755/1374353021525557248/image.png?ex=682dbd7e&is=682c6bfe&hm=3b590e882b3615041cb64d557d8161adcc887448a7ffd228332e6439986f56a7& https://cdn.discordapp.com/attachments/1374349233427185755/1374353021785342034/image.png?ex=682dbd7e&is=682c6bfe&hm=060bbf07a5cafe4aebbfee0b4761dbe2bdf633a577e14f7e4d8fb5e5d730f9ef& https://cdn.discordapp.com/attachments/1374349233427185755/1374353022133473383/image.png?ex=682dbd7e&is=682c6bfe&hm=60617c4b9b6f5e6d6d64d5698ff502a482083627faefbcee64c6a695c0704423& https://cdn.discordapp.com/attachments/1374349233427185755/1374353022641246328/image.png?ex=682dbd7e&is=682c6bfe&hm=0b878b2954a1243c4b238879c98a01b41fe87db2c519485c1181de6801957563&

You should check with your telephony provider. https://cdn.discordapp.com/attachments/1374349233427185755/1374496807245053992/export_f923bfe5-b010-123e-01a0-0a27f8948d15.pcap?ex=682e4367&is=682cf1e7&hm=741044bebe6a80015447f88003a7f47d6d9732106b0bdbdea7b46afec85f107d&

can't open the file

Hey @whomai, to open this file you have to use tools like wireshark and Sahil has asked to you to share this file with your telephony so they can fix the issues on their end. Let me know if you still require further help.

Okay Thanks

Marking this ticket as Solved ✅

Hello, We have same issue.

Can you please provide the most recent call id for us to review?

fecc8139-34de-43cd-80b9-7e1364cf30e7 When we try to call a customer using the Commpeak number, it shows that the customer did not answer the call. When we actually check, the call was not made. https://cdn.discordapp.com/attachments/1374349233427185755/1376850479912325120/image.png?ex=6836d36f&is=683581ef&hm=bcc711f889fff11e8fceb53e238bc150524f71159a842ebe054b508bc755bc45&

🔵 09:09:54:496 Call `fecc8139-34de-43cd-80b9-7e1364cf30e7` Waited 300s But Transport Never Connected.

The request for the call was sent but Commpeak didn't respond within those 5 minutes. If you can check with your provider to see their logs this may provide more details as to why the call didn't go through, but the attempt was made on our side.

Hello This time we use the Teltel instead of the Commpeak, we added SIP Trunk, we have a progress but in the end it does not work and the Teltel Customer Support Operator tells us that the Vapi's side is a verification problem. Call ID: 06b25951-36d9-4511-ae62-e94767257d2d 24dc25c9-8981-41ec-a156-2e6ba25d98d2 986818ca-94d7-4e57-b367-b351bc2e8c62 https://cdn.discordapp.com/attachments/1374349233427185755/1379062426095583344/image.png?ex=683edf78&is=683d8df8&hm=45d23f1cb9665faf44bd04afdb856cca7a79eb4b7e018b0408dac31b7ef8c7e3& https://cdn.discordapp.com/attachments/1374349233427185755/1379062426300973167/HbPldQO8nQwAAAAASUVORK5CYII.png?ex=683edf78&is=683d8df8&hm=a284c30fd0c503760ca3e71f89532746cdbc29012e5fc8b082cb6a230448d9ed& https://cdn.discordapp.com/attachments/1374349233427185755/1379062426506629191/OX7aFEKLa0GeZQghRR6xcs0afZQohRNaR4AshREaQ4AshREaQ4AshREaQ4AshRCZw7v8HNvW1FCv2n4AAAAASUVORK5CYII.png?ex=683edf78&is=683d8df8&hm=69410fb3da660408ccf88da1411833785e76df317bf5197d046ea09a7f10a394&

Looking into it

Any update?

Not yet I'll ping you when reviewed

Thanks!

Hey, this is something else - not telephony connected within the required time. So, I have to check into the admin worker logs for these calls. I'll take a look and just circle back to you with an appropriate response.

Any update? Please help us as soon as possible. Our balance in credits is positive as well as balance on TelTel. Sending our organization ID for reference: efe56f20-42d5-4146-aae2-75e61484a72a

Hey, it looks like your telephone is hanging up these calls by sending the BYE SIP signal. You can share the pcap files with them. In the pcap files, you can see that we are sending the invite and they are acknowledging it, but then they are hanging up. If there is some misconfiguration or they need to make changes, they can let us know by reviewing the pcap files.

Where is pcap files ?

You can get the pkf file either from the dashboard or by making a GET call API request.

Hello Any update?

Could you please share the PCAP file with us? You can download them from the call logs section of the Vapi Dashboard, just navigate to the call you want then under the call recording is the Pcap download button. https://cdn.discordapp.com/attachments/1374349233427185755/1381737641522761818/Screenshot_2025-06-09_at_1.50.09_PM.png?ex=68489af5&is=68474975&hm=d67b166a871b1b05e48c30a756d721da38b24d055e52acfccb4ddeb72b191979&

okay wait

Hey, as you can check in the below PICA file, it's your telephony that is sending the buy signal. It's not us or who is initiating the buy or call termination. So, you have to check with your telephony and work with him. Let me know if you require further help or have more doubts. https://cdn.discordapp.com/attachments/1374349233427185755/1382111838464114718/image.png?ex=6849f774&is=6848a5f4&hm=3cf9aa952541639bacdb443e8f45f68352ab12f669049f00c5b208db543ad144&

We tried to manually perform IP based authentication, unfortunately we have the same problem, we are sending you screenshots and a PCAP file. CALL ID: adf145f7-ab64-4668-abfc-1780113dd865 https://cdn.discordapp.com/attachments/1374349233427185755/1382309551537131650/image.png?ex=684aaf97&is=68495e17&hm=f5afe92f936cb10737ead80cab6d6b06805fa9540c6ab7151797201e26906950& https://cdn.discordapp.com/attachments/1374349233427185755/1382309551893778463/image.png?ex=684aaf97&is=68495e17&hm=78ba2b75186d47d0b032d3316c2f0e0ec8e323c6f2090147d995bbf6bb9b4ee0& https://cdn.discordapp.com/attachments/1374349233427185755/1382309552329854996/image.png?ex=684aaf97&is=68495e17&hm=9de2c899ac5600fbc9af9a4fe6c0cd0a5b6dd8ab660eafdba2ccdceedab94ff4& https://cdn.discordapp.com/attachments/1374349233427185755/1382309552841687201/image.png?ex=684aaf97&is=68495e17&hm=6610270a5d874c3fcf5c827a64fafcfc68bafbf698ec690589ee794233ee447d& https://cdn.discordapp.com/attachments/1374349233427185755/1382309553089019935/adf145f7-ab64-4668-abfc-1780113dd865-1749638415789-9ba03fe8-c268-4df8-a1cc-8a6b168bb384-sip.pcap?ex=684aaf97&is=68495e17&hm=abaa9da7a47f0fbd59602fd86d0787d34983777d2e29c15f5101b00273d09860&

Hey, can you book a quick call and we can discuss it over there? 

Done https://cdn.discordapp.com/attachments/1374349233427185755/1382680881189355520/image.png?ex=684c096b&is=684ab7eb&hm=6896b30c587a4c08b0c6217ab0927498bd144d214eba9a34591a67ab1cccd4a2& https://cdn.discordapp.com/attachments/1374349233427185755/1382680881420046407/image.png?ex=684c096b&is=684ab7eb&hm=a78c4fea71f938cf50de7bef9956228da6fb89bfd51b5e740051ae4823df05fd&

somehow I was able to login and waited for 5min and nobody turned up. Can you book for tomorrow.

We were trying to log in to Google Meet, but as we checked, there was a problem with Google services on Global. https://cdn.discordapp.com/attachments/1374349233427185755/1383034277230411898/QAAAABJRU5ErkJggg.png?ex=684d528b&is=684c010b&hm=bf074f63bccac0a04b7588c910c345109d8c930aa59c696cf83ac00f737a9e7e& https://cdn.discordapp.com/attachments/1374349233427185755/1383034277456777296/zVIAJn26oeAAAAABJRU5ErkJggg.png?ex=684d528b&is=684c010b&hm=2d3d2ed805fc1d829119d55014388df1ff8bcda40fcc4a3f756700df21ec8fb6& https://cdn.discordapp.com/attachments/1374349233427185755/1383034277704503337/AOIEpnYODTdVAAAAAElFTkSuQmCC.png?ex=684d528b&is=684c010b&hm=9eec3b5977f385d4d527f21492e775d68bc0f519d8ecbdd5024da76cd5cbbdf9& https://cdn.discordapp.com/attachments/1374349233427185755/1383034277981192192/CLtjfGKzmpwAAAAASUVORK5CYII.png?ex=684d528b&is=684c010b&hm=3650ca456ff7bc514762100186185d410d36c569dfb7462f1b53b3f6aa1975a4&

Thank you for booking. We look forward to meeting with you

If you were not able to meet, we can reschedule.

Friends, I would like to inform you that the problem has been resolved. I would like to thank all the members of the VAPI team who helped me.

Thank you for letting us know and if you require additional support please feel free to reach out!