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¾

DSCP for SIP/RTP:

DSCP(Differentiated Services Code Point) is the first 6 bits in the ToS

byte. DSCP marking allows users to assign specific application traffic to be executed in

priority by the next Router based on the DSCP value. Select DSCP for the SIP(

Session

Initiation Protocol

) and RTP(Real-time Transport Protocol) respectively. If you are unsure,

please always keep the default value.

¾

Dtmf Relay setting:

DTMF is Dual Tone Multi Frequency. Options available are SIPInfo,

RFC2833, and InBand. If you are unsure which one to choose, please always keep the

default value.

•

SIPInfo

– If it is selected, the Router will capture the DTMF tone and transfer it into SIP

form. Then it will be sent to the remote end with SIP message.

•

RFC2833

– If it is selected, the Router will capture the keypad number you pressed and

transfer it into digital form then send to the other side; the receiver will generate the tone

according to the digital form it receives. This function is very useful when the network

traffic congestion occurs and it still can remain the accuracy of DTMF tone.

•

InBand

– If it is selected, the Router will send the DTMF tone as audio directly when you

press the keypad on the phone.

¾

Registration Expire Timeout(s):

Expire time for the registration message sending.

¾

Registration Retry Interval(s):

Set the time duration for your SIP Registrar server to keep

your registration record. Before the time expires, the Modem Router will send another register

request to SIP Registrar again. If you are unsure of it, please always keep the default value.

¾

Enable T38 support:

T38 specifies a protocol for transmitting a fax across IP network in real

time. It allows the transfer of fax documents in real-time between two standard Group 3

facsimile terminals over the Internet or other networks using IP protocols. It will only function

when both sites support this feature and are enabled.

PSTN Setup

¾

Incoming PSTN Calls Routing:

Choose a method for the Router to decide where to route

the incoming call on PSTN network.

•

Phone-Physical Phone

–

The Router will route the incoming call according to the

physical line selected in “Route Incoming PSTN Calls To” field. For example, if “Idle

Phone” is selected, the Router will first judge the status of Phone 1. If it is free, then the

incoming call will be routed to Phone 1. Otherwise, the Router will go on judging the

status of Phone 2.

•

VoIP-VoIP call

– The Router will route the incoming call according to the SIP number

and account set in “SIP URI of PSTN endpoint” field. For example, if “2654321@test1” is

input, the Router will directly route the incoming call to 2654321 through test1. The SIP

number and account can be a remote one, say a friend’s SIP number and account.

Besides, VoIP-VoIP call allows second dialing when the SIP number but not account is

left blank, for example “@test1”. This function is applicable on the FXO ports that function

as a bridge between VoIP call and PSTN. The user can remotely use the VoIP line to

initial a call.

¾

PSTN polarity reversal support:

This feature is disabled by default. If you are unsure of it,

please always keep the default.

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300Mbps Wireless N VoIP ADSL2+ Modem Router User Guide

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4.7.5 Speed Dial

Choose “

Voice

”

Æ

“

Speed Dial

”, you will see the screen as shown in Figure 4-44. This section

introduces how to configure Speed Dial for your account.

Speed Dial function can help to store frequently used telephone numbers and make your dial more

convenient. It allows you to make a call by pressing a short number and the pound sigh # on the

phone keypad instead of the original number.

Figure 4-44

To add a Speed Dial entry, click the

Add

button and you will see the screen as shown in Figure

4-45. Fill in the following parameters and then click the Save button.

Figure 4-45

¾

Number:

Enter a phone number.

¾

Speed Dial:

Enter a number from 0~99.

Click the

Save

button, you will go back to the previous page and see the following list as shown in

Figure 4-46.

Figure 4-46

Click the

Save

button to make the configuration take effect. If you want to delete the entry, check

the

Remove

box first, and then click the

Remove

button.

4.7.6 Call Log

Choose “

Voice

”

Æ

“

Call Log

”, you will see the screen as shown in Figure 4-47. This function allows

you to view call logs and configure call log options.

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300Mbps Wireless N VoIP ADSL2+ Modem Router User Guide

64

Figure 4-47

¾

Call Log:

Check the Enable if you want to make this function take effect; otherwise check the

Disable.

¾

Start:

Beginning time of the call.

¾

Source:

Caller ID, either phone number or IP address.

¾

Dest:

Callee ID, either phone number or IP address.

¾

Type:

Call types, including Incoming (VoIP), Incoming (PSTN), Outgoing (VoIP) and

Outgoing (PSTN).

¾

Process:

Process types, including Connected, Local forward, Remote forward, Local transfer,

Remote transfer, Conference and Unconnected.

¾

Time:

Total call time.

To configure the view of call log, click the

Config

button and you will see the screen as shown in

Figure 4-48. This page displays all the call types and process types. You can choose some of

them or all of them. Check the boxes before the corresponding options which you desire to view

and click the

Save

button to make the configuration take effect.

Figure 4-48

4.7.7 Call Firewall

Choose “

Voice

”

Æ

“

Call Firewall

“, you can see the next submenus:

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300Mbps Wireless N VoIP ADSL2+ Modem Router User Guide

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Call Firewall can be used to control incoming calls. This section introduces how to configure the

Call Firewall. Choose “

Voice

”

Æ

“

Call Firewall

“

Æ

“

Mode Setting

“, you will see the screen as

shown in Figure 4-49.

Figure 4-49

¾

Call Firewall Enable:

Check the box if you want to make the Call Firewall take effect.

¾

Black:

Check the

Black

box to enable Black List mode. Calls from numbers placed in the

Black List will be denied.

¾

White

: Check the

White

box to enable White List mode. Only calls from numbers placed in

the White List will be allowed.

¾

RejectAll:

Check the

RejectAll

box to enable Reject All mode. All incoming calls will be

denied.

To configure the Black List, choose “

Voice

”

Æ

“

Call Firewall

”

Æ

“

Black List

“ on the left menu or

click the

Black List

button on screen as shown in Figure 4-49, you will see the screen as shown in

Figure 4-50.

Figure 4-50

To add a new entry, click the

Add

button and you will see the screen as shown in Figure 4-51.

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300Mbps Wireless N VoIP ADSL2+ Modem Router User Guide

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Figure 4-51

Enter a number with the length in the range of [3, 16]in the field of

Black List Number

and Click

the

Save

button to make the configuration take effect, then you will go back to the previous page

and see the following list as shown in Figure 4-50. If you want to delete the entry, check the

Remove

box first and then click the

Remove

button.

To configure the White List, choose “

Voice

”

Æ

“

Call Firewall

”

Æ

”

White List

” on the left menu or

click the

White List

button on the screen as shown in Figure 4-49, then you will see the screen as

shown in Figure 4-52.

Figure 4-52

To add a new entry, click the

Add

button and you will see the screen as shown in Figure 4-53.

Figure 4-53

Enter a number with the length in the range of [3, 16] in the field of

White List Number

and click

the

Save

button to make the configuration take effect, then you will go back to the previous page

and see the following list as shown in Figure 4-52. If you want to delete the entry, check the

Remove

box first and then click the

Remove

button.

)

Note:

1. Partial matching rule is applied here, so this function works for all the incoming call numbers

that start with the number you have configured in the Black List or the White List. For example, if

the number you have configured in the Black List is 555, with Black List mode enabled the

incoming call number 5554510 will be denied.

2. If the numbers set in Black List and White List overlaps with each other, longest matching rule

will function in this situation. That is, with Black List mode enabled, incoming call numbers that

start with the number set in Black List may be allowed, and vice versa. For example, if you set 222