5.3 Tracing
2N® StarGate / BlueTower allows for operation tracing (VoIP, SIP, GSM). Tracing is accessible in one session only at a time, the other tracing requests are rejected with BUSY. With regard to a rather extensive volume of data, we recommend that the Write communication into file function should be activated before tracing. Any Telnet-supporting terminal (HyperTerminal, Putty, etc.) can be used.
Tip
- You are advised to synchronise your GSM gateway with the SIP Proxy, or a PC before tracing.
AT Command
- AT%S92=x – Description AT%S92=x Set the tracing details. Refer to the table below for value X
- AT!R2 – Start tracing via the active session
- Any character – Terminate tracing
| Layer 3 and 4 Status Listing | Timestamp Write-Out | SMP Packet Write-Out | Layer 2 Status Listing | LCR Listing |
|---|---|---|---|---|
| 1 | 2 | 4 | 8 | 16 |
The resultant value X is a sum of the required functions (X= timestamps+LCR = 16+2 = 18, e.g.).