Chapter 9 Voice
P-2812HNU-51c User’s Guide
208
T.38 Fax Relay Select this if the P-2812HNU-51c 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.
QoS Tag
SIP DSCP Mark
Setting
Enter the DSCP (DiffServ Code Point) number for SIP voice
transmissions. The P-2812HNU-51c creates Class of Service (CoS)
priority tags with this number to voice traffic that it transmits.
RTP DSCP Mark
Setting
Enter the DSCP (DiffServ Code Point) number for RTP voice
transmissions. The P-2812HNU-51c creates Class of Service (CoS)
priority tags with this number to RTP traffic that it transmits.
Timer Setting
Expiration
Duration
Enter the number of seconds your SIP account is registered with the
SIP register server before it is deleted. The P-2812HNU-51c
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.)
Register Re-
send timer
Enter the number of seconds the P-2812HNU-51c waits before it tries
again to register the SIP account, if the first try failed or if there is no
response.
Session Expires Enter the number of seconds the P-2812HNU-51c lets a SIP session
remain idle (without traffic) before it automatically disconnects the
session.
Min-SE Enter the minimum number of seconds the P-2812HNU-51c 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 P-2812HNU-51c accepts.
Phone Key
Config
Call Return Specify the key combinations that you can enter to place a call to the
last number that called you.
One Shot Caller
Display Call
Specify the key combinations that you can enter to activate caller ID for
the next call only.
One Shot Caller
Hidden Call
Specify the key combinations that you can enter to deactivate caller ID
for the next call only.
Call Waiting
Enable
Specify the key combinations that you can enter to put a call on hold
when you are answering another.
Call Waiting
Disable
Specify the key combinations that you can enter to turn the call waiting
function off.
IVR Specify the key combinations that you can enter to set up Interactive
Voice Response (IVR). IVR allows you to record custom caller ringing
tones (the sound a caller hears before you pick up the phone) and on
hold tones (the sound someone hears when you put their call on hold).
Internal Call
Specify the key combinations that you can enter to call the phone(s)
connected to the P-2812HNU-51c.
Call Transfer Specify the key combinations that you can enter to transfer a call to
another phone.
Table 58 VoIP > SIP > SIP Service Provider (continued)
LABEL DESCRIPTION
