Audio and Video Codec Configuration
  • 19 Sep 2024
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Audio and Video Codec Configuration

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Article summary

Audio Codec

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.

Set it up on the Account > Advanced > Audio Codecs interface.

Please refer to the bandwidth consumption and sample rate for the three codec types below:

图片.pngVideo Codec

The door phone supports the H264 codec that provides better video quality at a much lower bit rate with different video quality and payload.

To set it up, go to the web Account > Advanced > Video Codec interface.

  • Name: Check to enable the H264 video codec format for the door phone video stream.

  • Resolution: Select the resolution from the provided options. The default code resolution is CIF.

  • Bitrate(Kb/Sec): The video stream bitrate ranges from 128 to 2048 kbps. The greater the bitrate, the more data transmitted every second and the clearer the video will be. The default code bitrate is 512.

  • Payload: The payload ranges from 90 to 119 for configuring audio/video configuration files. The default is 104.

Video Codec for Direct IP Calls

You can select the IP call video quality by selecting the proper codec resolution according to the network condition.

To set it up, navigate to the Intercom > Basic > Direct IP interface.

  • Video Resolution: Select the resolution from the provided options.

  • Video Bitrate(Kb/Sec): The video stream bitrate ranges from 64 to 2048 kbps. The default bitrate is 2048.

  • Video Payload: The payload ranges from 90 to 119 for configuring audio/video configuration files. The default is 104.

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.

To set it up, navigate to the Account > Advanced > DTMF interface.

  • Type: Select from the following options: Inband, RFC2833, Info, Info+Inband, or 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 Disabled, DTMF, DTMF-Relay, or 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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