Siemens gigaset s450 ip 사용자 설명서

Gigaset S450 IP LBA / SGP / A31008-M1713-Y221-1-7619 / web_server.fm / 30.8.07

Ve

rs

ion 4,

 16

.09.

2005

To save additional bandwidth and trans-

mission capacity, on VoIP connections that 

use codec 

you can suppress the 

transmission of voice packets in pauses 

("Silence Suppression"). Then, instead of 

the background noises in your environ-

ment, your caller hears a synthetic noise 

generated in the receiver.
Please note: "Silence Suppression" can 

sometimes lead to deterioration in the 

voice quality. 

¤

In the 

 

field, state whether, when using codec 

, transmission of data packets for 

pauses is to be suppressed (activate 

 

option). 

¤

Click on the 

 button to save the set-

tings for the voice quality.

With your Gigaset S450 IP you have the 

opportunity to make calls with good voice 

quality via VoIP. 
However, your phone's performance with 

VoIP – and therefore the voice quality – 

also depends on the properties of the 

entire infrastructure. 
The following VoIP provider components 

are just some of the things that can influ-

ence performance:
u Router
u DSLAM 
u DSL transmission line and speed
u Connection paths over the Internet 
u If necessary, other applications that 

also use the DSL connection

In VoIP networks, the voice quality is influ-

enced by various things including the 

"quality of service" (QoS). If the entire 

infrastructure demonstrates QoS, voice 

quality is better (fewer delays, less echo-

ing, less crackling etc.). 
If, for example, the router does not have 

QoS, then the voice quality is not as good. 

Please see the specialist documentation 

for further information. 

Your phone can be assigned up to seven 

phone numbers: the fixed network 

number and up to six VoIP phone num-

bers. 
You can assign these numbers to the indi-

vidual handsets that are connected to your 

base station as receiving and sending 

numbers. The means that for each hand-

set, you define the calls that it will ring for, 

and which VoIP account (sending 

number) is used by your VoIP provider to 

calculate outgoing VoIP calls. 

– You should only deactivate codecs (put 

them in the 

 list) if there is a 

particular reason. The more codecs that 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. 

You should observe the following for good 

voice quality:
– When making calls using VoIP, avoid per-

forming other Internet activities 

(e.g. surfing the net). 

– Irrespective of the codec used and the net-

work capacity utilisation, please note that 

voice delays can occur. Therefore, allow 

your VoIP calling partner to finish speaking. 

Avoid interrupting your calling partner.