ZyXEL Communications Prestige 2802HW(L)-IX Support Notes page 107

URL Type Select SIP to have the Prestige include the domain name with the SIP
number in the SIP messages that it sends.
Select TEL to have the Prestige use the SIP number without a domain
name in the SIP messages that it sends.
Expiration This field sets how long an entry remains registered with the SIP register
server. After this time period expires, the SIP register server deletes the
Duration
Prestige's entry from the database of registered SIP numbers. The register
server can use a different time period. The Prestige sends another
registration request after half of this configured time period has expired.
Register Use this field to set how long the Prestige waits before sending a repeat
Re-send registration request if a registration attempt fails or there is no response
from the registration server.
Timer
Session Use this field to set the longest time that the Prestige will allow a SIP
Expires session to remain idle (without traffic) before dropping it
When two SIP devices negotiate a SIP session, they must negotiate a
Min-SE
common expiration time for idle SIP sessions. This field sets the shortest
expiration time that the Prestige will accept.?
The Prestige checks the session expiration values of incoming SIP INVITE
requests against the minimum session expiration value that you configure
here. If the session expiration of an incoming INVITE request is less than
the value you configure here, the Prestige negotiates with the other SIP
device to increase the session expiration value to match the Prestige's
minimum session expiration value.
RTP Port Real time Transport Protocol is used to handle voice data transfer. Use this
Range field to configure the Prestige's listening port range for RTP traffic. Leave
these fields set to the defaults if you were not given a range of RTP ports to
use.
The Dual Tone Multi-Frequency (DTMF) mode sets how the Prestige
handles the tones that your telephone makes when you push its buttons. It
DTMF Mode
is recommended that you use the same mode that your VoIP service
provider uses.
All contents copyright (c) 2007 ZyXEL Communications Corporation.
Prestige 2802HW(L)-Ix Support Notes
107