Setting dtmf signalling, Defining dialling plans – Siemens Gigaset C450 IP User Manual

Page 57

Web configurator

Gigaset C450 IP / Greek eng / A31008-M1713-T151-2-8U19 / web_server.fm / 19.9.06

ion 4,

.09.

2005

Saving settings on phone

Click on

Set

to save the changes.

If you want to reject the changes that have

been made, click on

Cancel

. The Web page

is re-loaded with the data saved on the

phone.
Please note: If you do not make an entries

for a lengthy period, the connection to the

Web configurator is automatically termi-

nated. Unsaved entries are lost. If neces-

sary, implement temporary security meas-

ures. You can subsequently continue the

entry and make changes if necessary.

Setting DTMF signalling

For example, DTMF signalling is required

for playing and controlling some network

answer machines via digit codes.
For VoIP specify how DTMF signals should

be transmitted: as audible information in

the voice channel or as a "SIP Info" mes-

sage.
Ask your VoIP provider which type of

DTMF transmission it supports.

Open the following Web page:

Settings

Telephony

DTMF

In the

RTP Mode

field, specify whether

DTMF signals are to be transmitted

acoustically (in voice packages). If so,

activate

Audio

; otherwise, activate

DTMF via RTP

In the

Via SIP Info

field, specify whether

DTMF signals are to be transmitted as

code. Activate

Yes

Now click on

Set

to save your settings.

Defining dialling plans

You can define user-specific dialling plans

for your phone.

Open the following Web page:

Settings

Telephony

Dialing Plans

Setting Area Code Predialling:

In VoIP calls you must generally always

dial the area code – even for local calls.
You can save the annoying need to dial the

area code for local calls by activating the

Area Code Predialling

function. In VoIP calls,

the area code entered is then prefixed to

all numbers that do not start with 0 – even

when dialling numbers from the directory

and other lists.

Enter your area code in the

Area Code

field, e.g. 089.

Click on the

Yes

option next to

Predial

area code for local calls through VoIP

activate the function.
If you click on

you must enter the

area code even for local calls via VoIP.

Numbers in the directory must always

contain the area code for dialling via

VoIP.

Click on

Set

to save the settings.

Notes:

– You should only deactivate Codecs (put

them in the

Available codecs

list) if there is a

particular reason. The more Codecs are

deactivated, the greater the danger that

calls will not be able to be established due

to unsuccessful Codec negotiations.

– With incoming calls, all supported voice

Codecs are always permitted.

Please note that if the option is activated, the

area code is prefixed to all phone numbers that

do not start with 0 and are dialled via VoIP.

This is especially the case for numbers of the

network answer machine (page 33) and,

if the

Emergency calls always via fixed line

option

is deactivated (see below), for emergency

numbers.