ZTE Corporation ZXV10P802L Manuale Utente
1500 byte (or 120kbps)).
When setting this value, be aware of the requested packet
time (ptime, used in SDP message) is a result of
configuring this parameter. This parameter is associated
with the first codec in the above codec Preference List or
the actual used payload type negotiated between the 2
conversation parties at run time. E.g., if the first codec is
configured as G.723 and the “Voice Frames per TX” is set
to 2, then the “ptime” value in the SDP message of an
INVITE request will be 60ms because each G.723 voice
frame contains 30ms of audio. Similarly, if this field is set to
2 and the first codec is G.729 or G.711 or G.726, then the
“ptime” value in the SDP message of an INVITE request
will be 20ms.
If the configured voice frames per TX exceeds the
maximum allowed value, the IP phone will use and save
the maximum allowed value for the corresponding first
codec choice. The maximum value for PCM is 10 (x10ms)
frames; for G.726, it is 20 (x10ms) frames; for G.723, it is
32 (x30ms) frames; for G.729/G.728, 64 (x10ms) and 64
(x2.5ms) frames respectively.
Please be careful when editing these parameters.
Adjusting these parameters will also change the dynamic
jitter buffer. The ZXV10 P802L has a patent dynamic jitter
buffer handling algorithm. The jitter buffer range is 20 ~
200 ms.
We recommend using the default settings provided. We do
not recommend adjusting these parameters if you are an
average user. Incorrect settings will affect the voice quality.
When setting this value, be aware of the requested packet
time (ptime, used in SDP message) is a result of
configuring this parameter. This parameter is associated
with the first codec in the above codec Preference List or
the actual used payload type negotiated between the 2
conversation parties at run time. E.g., if the first codec is
configured as G.723 and the “Voice Frames per TX” is set
to 2, then the “ptime” value in the SDP message of an
INVITE request will be 60ms because each G.723 voice
frame contains 30ms of audio. Similarly, if this field is set to
2 and the first codec is G.729 or G.711 or G.726, then the
“ptime” value in the SDP message of an INVITE request
will be 20ms.
If the configured voice frames per TX exceeds the
maximum allowed value, the IP phone will use and save
the maximum allowed value for the corresponding first
codec choice. The maximum value for PCM is 10 (x10ms)
frames; for G.726, it is 20 (x10ms) frames; for G.723, it is
32 (x30ms) frames; for G.729/G.728, 64 (x10ms) and 64
(x2.5ms) frames respectively.
Please be careful when editing these parameters.
Adjusting these parameters will also change the dynamic
jitter buffer. The ZXV10 P802L has a patent dynamic jitter
buffer handling algorithm. The jitter buffer range is 20 ~
200 ms.
We recommend using the default settings provided. We do
not recommend adjusting these parameters if you are an
average user. Incorrect settings will affect the voice quality.
No Key Entry
Timeout
Timeout
Default is 4 seconds.
Use # as Dial
Key
Key
This parameter allows users to configure the “#” key as the
“Send” (or “Dial”) key. If set to “Yes”, the “#” key will
immediately send the call. In this case, this key is
essentially equivalent to the “(Re)Dial” key. If set to “No”,
“Send” (or “Dial”) key. If set to “Yes”, the “#” key will
immediately send the call. In this case, this key is
essentially equivalent to the “(Re)Dial” key. If set to “No”,