Siemens HiPath 2000 Manual page 32

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Menu Status

Procedure when establishing a connection:

If you select a Codec as "preferred", the handset suggests the Codec each

time it tries to establish a connection. The "preferred" Codec is only used if

the receiving device accepts this particular Codec.

If the receiving device does not accept the Codec (e.g. because it does not

support it), a different Codec (lower quality) is negotiated. The connection

is established by using the negotiated Codec.

If you select a Codec as "only", the handset requests the Codec when estab-

lishing a connection. The connection is not established if the receiving

device does not accept this Codec. An appropriate message will be

displayed on the handset.

RTP Packet Size

Specify the size of the data packet. You can choose between 10 ms, 20 ms,

30 ms and Automatic. Large packets result in a longer execution time

(poorer voice quality) but less network utilisation. Small packets result in a

shorter execution time (improved voice quality) but greater network utili-

sation.

Silence Suppression

When Silence Suppression is activated hardly any data packets are trans-

mitted from the sender during pauses in the conversation. This saves

bandwidth and therefore improves transmission capacity.

In some circumstances, however, Silence Suppression means a deterio-

ration in the voice quality. Slight background noises are also always sent

along with the voice, and when Silence Suppression is activated these are

replaced at the recipient's end by "synthetic" noise. This can irritate the

recipient.

Click on the option to activate Silence Suppression (marked with an arrow)

or to deactivate it.

Saving/rejecting settings

Click on the Apply button to store the changed settings on the handset.

Click on the Undo button if you want to reject the changes.

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