The Sip Account Screen - ZyXEL Communications P-2812HNU-51c User Manual

Chapter 16 VoIP
Table 60 VoIP > SIP > SIP Service Provider (continued)
LABEL
T38 Fax Relay
Outbound Proxy
Enable
Server Address
Server Port
QoS Tag
SIP TOS Priority
Setting
RTP TOS Priority
Setting
Timer Setting
Expiration
Duration
Register Re-send
timer
Session Expires
Min-SE
Dialing Interval Selection
Dialing Interval
Selection
PSTN Fail Over
("L" models only)
Apply
Cancel

16.3 The SIP Account Screen

The Device uses a SIP account to make outgoing VoIP calls and check if an incoming call's
destination number matches your SIP account's SIP number. In order to make or receive a VoIP
call, you need to enable and configure a SIP account, and map it to a phone port. The SIP account
contains information that allows your Device to connect to your VoIP service provider.
224
DESCRIPTION
Select this if the Device should send fax messages as UDP or TCP/IP packets
through IP networks. This provides better quality, but it may have inter-
operability problems. The peer devices must also use T.38.
Select this if your VoIP service provider has a SIP outbound server to handle
voice calls. This allows the Device to work with any type of NAT router and
eliminates the need for STUN or a SIP ALG. Turn off any SIP ALG on a NAT router
in front of the Device to keep it from re-translating the IP address (since this is
already handled by the outbound proxy server).
Enter the IP address or domain name of the SIP outbound proxy server.
Enter the SIP outbound proxy server's listening port, if your VoIP service
provider gave you one. Otherwise, keep the default value.
Enter the DSCP (DiffServ Code Point) number for SIP message transmissions.
The Device creates Class of Service (CoS) priority tags with this number to SIP
traffic that it transmits.
Enter the DSCP (DiffServ Code Point) number for RTP voice transmissions. The
Device creates Class of Service (CoS) priority tags with this number to RTP
traffic that it transmits.
Enter the number of seconds your SIP account is registered with the SIP register
server before it is deleted. The Device automatically tries to re-register your SIP
account when one-half of this time has passed. (The SIP register server might
have a different expiration.)
Enter the number of seconds the Device waits before it tries again to register the
SIP account, if the first try failed or if there is no response.
Enter the number of seconds the Device lets a SIP session remain idle (without
traffic) before it automatically disconnects the session.
Enter the minimum number of seconds the Device lets a SIP session remain idle
(without traffic) before it automatically disconnects the session. When two SIP
devices start a SIP session, they must agree on an expiration time for idle
sessions. This field is the shortest expiration time that the Device accepts.
Enter the number of seconds the Device should wait after you stop dialing
numbers before it makes the phone call. The value depends on how quickly you
dial phone numbers.
Select this check box if you want to redirect the outgoing calls to the PSTN line
(that do not use the Internet) when your SIP account is unregistered or SIP call
has failed.
Click Apply to save your changes.
Click Cancel to restore your previously saved settings.
P-2812HNU(L)-Fx Series User's Guide