18.3.3.3. Deactivation of SPE for SIP-Q / Native SIP Trunking 
Deactivating SPE
IMPORTANT:
SPE can be deactivated without reboot.
The reduction of the security level from SECURE to TRADITIO
for a partner gateway (AMO GKREG, parameter SECLEVEL) means
that all subsequent calls are set up via TCP or UDP. SPE is therefore
deactivated for all subsequent calls to the relevant partner gateway.
The ongoing calls are maintained on TLS just as the TLS connection
is maintained, even if all associated calls are ended. gateway itself
also remains in secure mode.
IMPORTANT:
If you want to deactivate SPE for incoming calls
from this partner gateway, you must also reconfigure the AMO GKREG at
the partner system (parameter SECLEVEL=TRADITIO).
Activating SPE
SPE can be activated without reboot.
As for deactivation, again with the AMO-GKREG.
IMPORTANT:
gateway must already be in secure mode. Do not
overlook possible changes in the partner system when performing activation
(AMO GKREG, SECLEVEL=SECURE).