I've created my own SIP Trunk with registration option. They I made a few tests. After a while, I deleted that phone number and trunk but still receiving registration requests. How can I stop that?

Based on the information I found, the most effective solution is to delete all existing SIPs with this number on Vapi and then create new ones. According to a Vapi team member in a [Discord conversation](https://discord.com/channels/1211482211119796234/1339952678150868992), this issue often occurs when a number is associated with multiple organizations or accounts. If this doesn't resolve the issue, I recommend checking your firewall configuration to ensure it's properly configured for SIP traffic and examining system logs for specific error messages. Sources: - [Discord conversation about deleting SIPs](https://discord.com/channels/1211482211119796234/1339952678150868992) - [Discord conversation about firewall configuration](https://discord.com/channels/1211482211119796234/1334919245468799007)

Same issue here, too. I've deleted credentials on november 2024 and I still receive registration requests.

Can you send me the credential id?

I have the same Problem with deleted SIP trunk: [CM102001]: Authentication failed for AuthFail Recv Req REGISTER from 44.248.28.182:47219 tid=7DNr1g7aQaX8r Call-ID=5df989da-9e31-123e-eda5-06e35b2f47bd: REGISTER sip:Fr2uLkcQl4 SIP/2.0 Via: SIP/2.0/TCP 44.248.28.182;branch=z9hG4bK7DNr1g7aQaX8r Max-Forwards: 70 Contact: ;expires=3600 To: From: ;tag=47t820KBNrtgB Call-ID: 5df989da-9e31-123e-eda5-06e35b2f47bd CSeq: 98333983 REGISTER Expires: 3600 Proxy-Authorization: Digest username="B2EeKoGcym",realm="3CXPhoneSystem",nonce="",uri="sip:Fr2uLkcQl4",response="7bd9e386b2a1b982bc0e887dc424cdc5",algorithm=MD5 Content-Length: 0

@Sahil We don't have credential id because we deleted them, but still receiving registration requests.

Can you provide me something so that I can look into the DB like your SIP uri or IP address where we are sending the SIP registration request?

Hi sahil. I've deleted my whole account but still getting registration request

@SvollFarn Deleted can you check and confirm?

@Sahil I'm still getting the registration requests, can you please delete mine too?

Fixed.

You said that credentials are removed but still getting registeration requests. These requests are comming nearly at the same time. https://cdn.discordapp.com/attachments/1365298691946319903/1366647071851024494/image.png?ex=6811b4c5&is=68106345&hm=12e1e6db3dd7ee4ffb143e6454daeb5aca364ba56e9e54f73b1738931364ce77&

Hi @Sahil We're still getting registration attempts from the IP address 44.248.28.182 every few minutes, even though you wrote that it's been fixed. There seems to be a fundamental problem with deleted SIP trunks. Can't you fix this in general? Here's another current request: [CM102001]: Authentication failed for AuthFail Recv Req REGISTER from 44.248.28.182:47219 tid=3Z64tgt2p66ca Call-ID=2947b54c-a02b-123e-eda5-06e35b2f47bd: REGISTER sip:Fr2uLkcQl4 SIP/2.0 Via: SIP/2.0/TCP 44.248.28.182;branch=z9hG4bK3Z64tgt2p66ca Max-Forwards: 70 Contact: ;expires=3600 To: From: ;tag=D4Utgp283SSag Call-ID: 2947b54c-a02b-123e-eda5-06e35b2f47bd CSeq: 98442602 REGISTER

sip:B2EeKoGcym@kundw.on3cx.de

I guess you fixed it. I'm not receiving any register request anymore. Thank you for your support.

Marking this ticket as Solved ✅