User Guide

Missed Call Log: To display the miss call log.
Prevent SIP Hacking: Enable or disable to prevent SIP from
hacking.
5.3.8. Session Timer
Active: If enabled, the ongoing call will be disconnected
automatically once the session expired unless it’s been
refreshed by UAC or UAS.
Session Expire: Configure session expire time.
Session Refresher: To configure who should be response for
refreshing a session.
5.3.9. Encryption
Voice Encryption(SRTP): If enabled, all audio signal
(technically speaking it’s RTP streams) will be encrypted for
more security.