Configure The Advanced Parameters Of Voip - Zte ZXHN H2640 Maintenance Management Manual

6.3 Configure the Advanced Parameters of VoIP

Abstract
This procedure describes how to configure advanced parameters of the VoIP service,
including echo cancellation, jitter buffer, and DTMF.
Steps
Configuring the Advanced Parameters
1. On the main page of the ZXHN H2640, select VoIP > Advanced. The Advanced
Parameters page is displayed, see
Figure 6-3 Advanced Parameters Page
2. Set the advanced parameters. For a description of the parameters, refer to
6-2.
Table 6-2 Advanced Parameter Descriptions for the VoIP Service
Parameter
DTMF
Jitter Buffer
Min Value
Max Value
3. Click Apply button to apply the changes.
Configuring the Echo Cancellation
SJ-20200714160642-002 | 2020-07-27(R1.0)
Figure 6-3.
Description
DTMF mode. Options:

RFC2833: DTMF digits are carried by RTP streams.

DTMF in Voice: DTMF digits are not processed.

SIP Info:SIP protocol information.
The variation in packet delay is called jitter. Jitter buffer refers to
intentional delay of packets. Options:

Fixed: A fixed buffer time must be specified.

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.
6 Configure the VoIP
Table
6-3