Huawei IP Phone eSpace 7870
User Manual
3 Configuring eSpace 7870
Issue 01 (2012-06-20)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
47
Figure 3-18
Setting voice-related parameters
Table 3-11
lists parameters in the
Voice
area on the
Phone
tab page.
Table 3-11
Parameters in the Voice area
Parameter
Description
Echo Cancellation
Configuration about echo cancellation.
Echo canceller
Indicates whether to enable the echo canceler.
VAD
Indicates whether to enable the Voice activity detection (VAD).
CNG
Indicates whether to enable the Comfort Noise Generator (CNG).
JITTER BUFFER
Configuration about the jitter buffer. Voice packages can be
collected, stored, and sent to the voice processor.
Type
Type of the jitter buffer.
Min Delay
Minimum delay.
Max Delay
Maximum delay.
Normal Delay
Normal delay.
Ring
The distinctive ring tone service allows a user to identify the callers based on the ring tone.
The ring tone is specified in the Alert-Info message in the SIP Invite signaling. The ring tone
can be a local ring tone or a remote ring tone.
Local ring tone: ring tone stored in the flash memory of an IP phone.
Remote ring tone: ring tone that an IP phone downloads from a URL specified in the SIP
Invite signaling.