Configuration
57
Enable Keep Authenti-
cation ............................
Causes your tiptel 83 VoIP to use the last received
key when registering again. This may help to ac-
celerate registration.
Auto Detect ...................
Server
With this option activated tiptel 83 checks in time
intervals set as "Detection Time" if the SIP server
programmed can be accessed. In case that server
cannot be accessed then another SIP account will
be used for outgoing calls.
Enable Session Timer ..
When activated there will be a "Re-Invite" during a
call.
Signal Encode .............. Activates signal encoding to your SIP provider
RTP Encode.................. Activates encryption of audio data (RTP)
Use STUN ..................... Activate STUN to be able to place calls via the NAT
of a firewall.
Deactivate STUN in case the STUN server is lo-
cated in the same network.
Enable Via rport ............ In case you encounter problems in connection with
NAT of a firewall then should activate rport. In this
case tiptel 83 VoIP will send port information to
your SIP provider.
Answer With Single Co-
dec
Causes your tiptel 83 VoIP to send only one single
codec during connection set up.
Enable Subscribe
In case your SIP provider supports SIP Presence
Function then you can activate this service.
SIP STUN settings
WEB
→
VoIP Phone Menu
→
SIP Setting
→
Global Set
In case you wish to place telephone calls via a gateway the it is in most cases nec-
essary to determine the IP address of your internet access by using a STUN server.
STUN servers are usually provided by your SIP provider.
