Live Call Transfer Ending Immediately After Transf...
# support
a
Calls are ending immediately after transfer attempts instead of successfully connecting to the destination number. The system initiates the transfer correctly via live-control API, but the call is being ended instead of completing the transfer to the target phone number. ## Calls IDs: -
d869b59b-e2d0-4da1-aaa9-3e2b99522934
-
dfb8ad07-2a14-41eb-89fe-df3eb2ee8405
-
8ec0d1f6-cc61-489b-a945-7cbb69f54a52
## Observed Behavior 1. Call begins normally and is active 2. Transfer is initiated to destination number 3. Call immediately ends instead of connecting to the transfer destination 4. The intended recipient never receives the transferred call ## Technical Details ### Current Live call control Transfer payload
Copy code
typescript
{
  type: 'transfer',
  destination: {
    type: 'number',
    phoneNumber: '[DESTINATION_NUMBER]',
  },
  content: 'Transferring your call now',
}
## Expected Behavior Transfer should successfully bridge the call to the destination number without terminating the original call session.
@User Could you please update me on the current issue? It is important for my team to resolve this issue as soon as possible. Was it referred for investigation, or should we wait?
c
Hey Artandrey, I wanted to let you know that we're managing a high volume of support requests at the moment, so our response time might be a bit slower than usual. I truly appreciate your understanding and will get back to you as soon as possible!  Thanks again for your patience!
Ensure your telephony provider supports SIP REFER for call transfers. If not, switch to a provider that does or implement a warm transfer by dialing out to the destination manually..
a
We are using Twilio. Are there any guides available on how to configure phone numbers to make live call trasnfer possible?
c
Hey Artandrey, I sincerely apologize for the delay in our responses this week. We experimented with some process adjustments that didn’t work as intended, and unfortunately, this caused some disruptions. That’s entirely my responsibility. Just a quick note—our team is unavailable on weekends. However, if something urgent or critical comes up, feel free to reach out to me directly, and I’ll assist you. The support issues will be resolved in the coming weeks, and starting Monday, you can expect more consistent and improved support. Thank you so much for your patience and for continuing to stick with us!
Hi, First off, we want to sincerely apologize for the delay in getting back to you. We understand how frustrating it is to wait - especially when you're counting on us - and we owe you a clear explanation of what’s been happening and how we’re addressing it. Over the past few weeks, we've seen a significant increase in support requests. While this reflects exciting growth, it has also stretched our small team and exposed some real challenges in scaling our support operations. To improve your experience, we’ve taken a step back to reassess our approach. Here’s what we’re implementing: - Smarter Support Through Automation: We’re investing in our AI support systems to help you resolve issues more efficiently. Soon, our support bot will offer expanded capabilities, making it easier to access accurate, instant help—particularly for common or repetitive queries. - Expanding the Support Team: To meet growing demand, we’re adding 2–3 new team members focused on managing support volume and improving response times. - Prioritized SLAs for High-Usage Accounts: We’re introducing service level improvements for users who are growing with us: - Accounts with usage over 1,000 minutes/month will receive prioritized support. - For all general inquiries, we’re establishing a standardized 48-hour response time. We’re confident these steps will lead to faster, more reliable support and help us better serve you as you grow with us. Also, in case you still need help with this ongoing ticket, do let us know, and we will help you get this resolved as soon as possible. Thank you for your continued patience and for being part of our journey. Warm regards, Vapi Team
a
@User may these docs show the required settings to make it work by any chance: https://docs.vapi.ai/advanced/sip/twilio
c
Also go through this guilde
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