Chapter 9 Voice

Table 58 VoIP > SIP > SIP Service Provider (continued)

LABEL

DESCRIPTION

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

Enter the DSCP (DiffServ Code Point) number for SIP voice

Setting

transmissions. The P-2812HNU-51c creates Class of Service (CoS)

 

priority tags with this number to voice traffic that it transmits.

 

 

RTP DSCP Mark

Enter the DSCP (DiffServ Code Point) number for RTP voice

Setting

transmissions. The P-2812HNU-51c creates Class of Service (CoS)

 

priority tags with this number to RTP traffic that it transmits.

 

 

Timer Setting

 

 

 

Expiration

Enter the number of seconds your SIP account is registered with the

Duration

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-

Enter the number of seconds the P-2812HNU-51c waits before it tries

send timer

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

Specify the key combinations that you can enter to activate caller ID for

Display Call

the next call only.

 

 

One Shot Caller

Specify the key combinations that you can enter to deactivate caller ID

Hidden Call

for the next call only.

 

 

Call Waiting

Specify the key combinations that you can enter to put a call on hold

Enable

when you are answering another.

 

 

Call Waiting

Specify the key combinations that you can enter to turn the call waiting

Disable

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.

 

 

208

 

P-2812HNU-51c User’s Guide