Table E.6. ICRQ
| AVP | No. | Incoming | Outgoing | 
| Message Type | 0 | Value 10 | Value 10 | 
| Assigned Session ID | 14 | Mandatory | Mandatory, our session ID | 
| Call Serial Number | 15 | Accepted and passed on if relaying | Passed on incoming value | 
| Bearer Type | 18 | Ignored | Not sent | 
| Called Number | 21 | Accepted, used in RADIUS and passed on if relaying | Passed on incoming value | 
| Calling Number | 22 | Accepted, used in RADIUS and passed on if relaying | Passed on incoming value | 
| Sub-Address | 23 | Ignored | Not sent | 
| Physical Channel ID | 25 | Ignored | Not sent |