Figure 6-3 Advanced Parameters Page; Figure 6-4 Echo Cancellation Page - Zte ZXHN H268A Maintenance Management Manual

Figure 6-3 Advanced Parameters Page

2. Set the advanced parameters. For a description of the parameters, refer to
Table 6-2 Advanced Parameter Descriptions
Parameter
DTMF
Jitter Buffer
Min Value
Max Value
3. Click Apply.
Echo Cancellation
4. Select VoIP > Advanced > Echo Cancellation. The Echo Cancellation page is
displayed, as shown in

Figure 6-4 Echo Cancellation Page

5. Set the echo cancellation parameters. For a description of the parameters, refer to
Table 6-3.
SJ-20150916162339-007|2017-02-16 (R1.0)
Description
DTMF mode. Options:
l RFC2833: DTMF digits are carried by RTP streams.
l
DTMF in Voice: DTMF digits are not processed.
l
SIP Info:SIP protocol information.
The variation in packet delay is called jitter. Jitter buffer refers to
intentional delay of packets. Options:
l
Fixed: A fixed buffer time must be specified.
l
Adaptive: A jitter range must be specified.
Minimum value of the jitter range, default: 20 ms.
Maximum value of the jitter range, default: 200 ms.
Figure 6-4.
6-3
Chapter 6 Configure the VoIP
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Table 6-2.