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Setting the phone with the PC
S675IP / USA-CAN eng / A31008-xxxx-xxxx-x-xxxx / web_server.fm / 14.05.2009
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In the case of the voice codec, the voice data is digitalized (coded/decoded) and
compressed. A "better" codec (better voice quality) means more data needs 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:
G.722
Excellent voice quality. The
broadband
speech codec
G.722
works at the same
bit rate as G.711 (64 kbit/s per speech connection) but with a higher sampling
rate. This allows higher frequencies to be played back. The speech tone is there-
fore clearer and better than for the other codecs (High Definition Sound Per-
formance).
Gigaset S67H, S68H, SL37H and A58H are examples of HDSP-compatible hand-
sets.
G.711 a law / G.711 µ law
Excellent voice quality (comparable with ISDN). The necessary bandwidth is 64
kbit/s per voice connection.
G.726
Good voice quality (inferior to that with G.711 but better than with G.729).
Your phone supports G726 with a transmission rate of 32 kbit/s per voice con-
nection.
G.729
Average voice quality. The necessary bandwidth is less than or equal to 8 kbit/
s per voice connection.
Both parties involved in the telephone connection (caller/sender and recipient
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 band-
width of your DSL connection) the voice codecs your phone is to use, and spec-
ifying the order in which the codecs are to be suggested when a VoIP connec-
tion is established.
Area:
Settings for Bandwidth
The settings in this area influence all VoIP connections (VoIP phone numbers).
Allow 1 VoIP call only
You can usually make two VoIP calls at the same time on your phone. If, how-
ever, your DSL connection has a narrow bandwidth, there may be problems if
two VoIP calls are made at the same time. The data is no longer transferred
properly (long voice delay, data losses, etc.).
¤
Select
Yes
next to
Allow 1 VoIP call only
to prevent any further parallel VoIP
phone connections being established.
¤
If you wish to permit two VoIP connections, select
No
.
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