Akuvox R28 Series - Encryption; Nat; User Agent

R28A/V
Admin Guide
If enabled, the on going call will be disconnected automatically
once the session expired unless it’s been refreshed by UAC or
UAS.
4.2.10.Encryption
Go to Account - Advanced to configure.
If enabled, voice will be encrypted.
4.2.11.NAT
Go to Account - Advanced to display NAT related settings.
UDP Keep Alive message: If enabled, the phone will send UDP
keep-alive message periodically to router to keep NAT port alive.
UDP Alive Msg Interval: Keep alive message interval.
Rport: Remote port, if enabled, it will add remote port into
outgoing SIP message for designated account.
4.2.12.User Agent
Go to Account - Advanced to configure. One can customize
user agent field in the SIP message. If user agent is set to
specific value, users can see the information from PCAP. If user
Figure 4.2.10 Encryption
Figure 4.2.11 NAT
Figure 4.2.12 User Agent