Hey all, I'm attempting to use the Json editior to transfer a call to the SIP trunk I've created. I'm using voice agent and have already successfully tested my conversation with the originating SIP. I just want to add the mechanism which allows someone the option to talk to a live person. I have set up my terminating SIP on Twilio. Here is the JSON for the dialog node I'm referring to below.

 {
   "output": {
     "text": {
       "values": [
         "One moment please"
       ],
       "selection_policy": "sequential"
     },
     "vgwAction": {
       "command": "vgwActTransfer",
       "parameters": {
         "transferTarget": "<sip:phone-number/@termination-uri>"
       }
     }
   }
 }

This is the error I'm receiving:

 Error when updating output with output of dialog node id [node_3_1526190491412]. Node output is [{"text":{"values":["One moment please"],"selection_policy":"sequential"},"vgwAction":{"command":"vgwActTransfer","parameters":{"transferTarget":""}}}] SpEL evaluation error: Expression [ @xxxx.pstn.us1.twilio.com ] converted to [ entities['xxxx']?.metadata?.pstn.us1.twilio.com ] at position 34: EL1007E: Property or field 'us1' cannot be found on null

This is the template code given that I'm going off of:

 { "output": { "text": { "values": [ "Please hold on while I connect you with a live agent." ], "selection_policy": "sequential" }, "vgwAction": { "command": "vgwActTransfer", "parameters": { "transferTarget": "sip:phone-number/@termination-uri" } } } }

Any ideas for what I need to change?