Dear Vapi.ai Support Team, I hope this email finds you well. I am a customer with an account waseemcwt@gmail.com. I am currently working on integrating my SIP trunk with Vapi.ai for inbound calls,i am using https://au.voipcloud.online/ and I have encountered some issues during the configuration process. I would appreciate your guidance to resolve them. Here are the details of my setup and the problems I am facing: I am trying to manually configure a SIP trunk in Vapi.ai using the credentials from my VoIPCloud SIP trunk: Domain: sipm2.au.voipcloud.online Port: 7060 Username: ******* Inbound number: *********** When I enter these details in Vapi.ai (either via the dashboard or API), it fails to create the SIP trunk with an error message. I look forward to your advice to get this integration working smoothly.i have attached screenshots of configuration and error. #1211483291191083018 https://cdn.discordapp.com/attachments/1432373469206679663/1432373469881831475/Screenshot_2025-10-27_190346.png?ex=6900d13f&is=68ff7fbf&hm=7c2302b363f14f632c326dde8dfae4cfb7b76b1eee2073340ce1b7a0c6add5f2&

Thank you for sharing your SIP trunk configuration details. To help diagnose the issue, could you please confirm if you have allowlisted the following Vapi IP addresses on your VoIPCloud provider's firewall or portal? 44.229.228.186/32 44.238.177.138/32 Allowlisting these IPs is required for SIP signaling and media to work correctly with Vapi. Please let me know if this step has been completed. Source: - [Vapi SIP Trunking Documentation](https://docs.vapi.ai/advanced/sip/sip-trunk)

VoIPCloud provider is allowing only one IP address under "allow connection from one ip address only" @User

Action Required: Please contact VoIPCloud support and request that both Vapi IP addresses be allowlisted for SIP trunking:

44.229.228.186/32
44.238.177.138/32

This is essential for proper SIP integration with Vapi, as having only one IP allowlisted will prevent successful configuration. For reference, see the [Vapi SIP Trunking Documentation](https://docs.vapi.ai/advanced/sip/sip-trunk). Source: - [Vapi SIP Trunking Documentation](https://docs.vapi.ai/advanced/sip/sip-trunk)

i need sip URI for my account @Vapi Support Bot

Thank you for your question. To provide your exact SIP URI, could you please confirm if you have already created a SIP phone number in your Vapi dashboard? The SIP URI is typically shown there in the format: sip:your_chosen_username@sip.vapi.ai. If you haven't created a SIP phone number yet, would you like step-by-step instructions on how to do this? [See SIP setup documentation](https://docs.vapi.ai/advanced/sip) Sources: - [Vapi SIP Trunking Documentation](https://docs.vapi.ai/advanced/sip/sip-trunk) - [Vapi SIP Introduction](https://docs.vapi.ai/advanced/sip)

@User @Vapi