Please note:

If you do not use your Gigaset.net connection for six weeks, it is automatically deactivated. You cannot be reached for calls from the Gigaset.net.

The connection is reactivated:

–as soon as you start a search in the Gigaset.net directory (page 25) or

–make a call via the Gigaset.net (dial a number with #9 at the end) or

–activate the connection via the Web config- urator as described above.

Optimising voice quality for VoIP connections

You can make general and connection- specific settings to improve the voice quality for VoIP telephony.

¤Open the following Web page:

Settings ¢Telephony ¢Audio.

The voice quality for VoIP connections is mainly determined by the voice codec used for transferring the data and the available bandwidth of your DSL connec- tion.

In the case of the voice codec, the voice data is digitalised (coded / decoded) and compressed. A "better" codec (better voice quality) means more data needs to be to be transferred, i.e. perfect voice data transfer requires a DSL connection with a larger bandwidth.

The following voice codecs are supported by your phone:

G711 a law / G711 µ law

Excellent voice quality (comparable with ISDN). The necessary bandwidth is 64 kbit/s per voice connection.

G726

Good voice quality (inferior to that with G.711 but better than with G.729).

Your phone supports G.726 with a transmission rate of 32 kbit/s per voice connection.

Web configurator

G729

Average voice quality. The necessary bandwidth is less than 8 kbit/s per voice connection.

Both sides of a phone connection (caller/ sender side and receiver side) must use the same voice codec. The voice codec is negotiated between the sender and the recipient when establishing a connection.

You can influence the voice quality by selecting (bearing in mind the bandwidth of your DSL connection) the voice codecs your phone is to use, and specifying the order in which the codecs are to be suggested when a VoIP connection is estab- lished.

Area: Settings for Bandwidth

The settings in this area influence all VoIP connections (VoIP phone numbers).

Allow 1 VoIP call only

Generally speaking, you can make three VoIP calls simultaneously on your phone. If, however, your DSL connection has a narrow bandwidth, there may be problems if three VoIP calls are made at the same time. The data is no longer transferred properly (long voice delay, data losses etc.).

¤Activate the Yes option next to Allow 1 VoIP call only to prevent any further parallel VoIP phone connections being established.

¤If you wish to permit three VoIP con- nections, activate the No option.

Please note: If only one VoIP connection is permitted, the following VoIP network services are no longer available:

–Call waiting

Call waiting is not displayed during a call via VoIP.

–External consultation call from a VoIP call

–Toggling and initiating a conference call via VoIP

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