Audio & Video Codec Configuration for SIP Calls
- 20 Dec 2023
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Audio & Video Codec Configuration for SIP Calls
- Updated on 20 Dec 2023
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Audio Codec Configuration
The door phone supports three types of Codec (PCMU, PCMA, and G722) for encoding and decoding the audio data during the call session. Each codec varies in terms of sound quality. You can select the specific codec with different bandwidths and sample rates flexibly according to the actual network environment.
Navigate to the web Account > Advanced interface.
Please refers to the bandwidth consumption and sample rate for the three codecs types below:
| Codec Type | Bandwidth Consumption | Sample Rate |
|---|---|---|
| PCMA | 64 kbit/s | 8kHZ |
| PCMU | 64 kbit/s | 8kHZ |
| G722 | 64 kbit/s | 16kHZ |
Video Codec Configuration
The door phone supports the H264 codec that provides better video quality at a much lower bit rate with different video quality and payload.
Navigate to the web Account > Advanced interface.
Parameter Set-up:
Name: check to select the H264 video codec format for the door phone video stream. H264 is the video codec by default.
Resolution: the video quality resolution has four option, CIF, VGA, 4CIF and 720P according to the actual network environment. The default resolution is 4CIF.
Bitrate: the video stream bitrate ranges from 128 to 2048. The greater the bitrate, the data transmitted in every second is greater in amount, therefore, the clearer the video will be. The default code bitrate is 2048.
Payload: the payload ranges from 90 to 119 for configuring the audio/video configuration file. The default payload is 104.
Video Codec Configuration for IP Direct Calls
You can select the IP call video quality by selecting the proper codec resolution according to your actual network condition.
Navigate to the web Phone > Call Feature > IP Video Parameters interface.
Parameter Set-up：
Video Resolution: the video quality resolution has four option, CIF, VGA, 4CIF and 720P according to the actual network environment. The default resolution is 4CIF.
Video Bitrate: the video stream bitrate ranges from 64 to 2048 kbps. The greater the bitrate, the data transmitted in every second is greater in amount, therefore, the clearer the video will be. The default code bitrate is 2048.
Video Payload: the payload ranges from 90 to 119 for configuring the audio/video configuration file. The default payload is 104.
Configure DTMF Data Transmission
In order to achieve door access via DTMF code or some other applications, you are required to properly configure DTMF in order to establish a DTMF-based data transmission between the door phone and other intercom devices for third-party integration.
Navigate to the web Account > Advanced > DTMF interface.
Parameter Set-up:
Type: select DTMF mode among five options: Inband, RFC2833, Info, Info+Inband and Info+RFC2833 based on the specific DTMF transmission type of the third-party device to be matched with as the party for receiving signal data.
How to Notify DTMF: select among four types: Disable, DTMF, DTMF-Relay, and Telephone-Event according to the specific type adopted by the third-party device. You are required to set it up only when the third party device to be matched with adopts Info mode.
Payload: set the payload according to the specific data transmission payload agreed on between the sender and receiver during the data transmission.
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