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Retell AI

{"status":"Transfer call cannot be completed, probably don't have the permission to perform the transfer.. Please inform the customer that the transfer did not go through and offer to try again or assist them directly."}

call_a48043999367ef3e671fc3ea073
agent_93e44d849bc2f1cc10fd8414d4

sip trunk number

<@697498653039919115> <@1405365110880338062> <@1193696787521876126>

This may be due to a permissions issue on our end.

SIP refer is enabled and also caller id we are transferring to is verified

Hello <@564691291263205376> , you were using warm transfer with Displayed Caller ID as User's number , which the providers block it 
You can use warm trasnfer with retell number 
If you want to show the user's number you can use the cold transfer