Bandwidth logo Menu

Coder-decoder (Codec)

Coder-Decoder (Codec) is used to encode audio from an analog signal to digital so that it can be passed across a data network. There are multiple codecs that can be used depending on the end applications and bandwidth available between the devices.


How is Bandwidth Involved with Codec

Bandwidth offers Codec as a feature of our services.

Here is a brief overview of what Codec looks like on a technical level:
In a SIP INVITE, a range of codecs will be offered in the SDP in order to send the voice (or other media) in a call; this is akin to the sending side saying “these are the languages I speak”. The receiving side will then chose a codec ‘language’ from the offer and send that back in the SDP of the 200 OK. Once a codec ‘language’ is agreed upon in a 200 OK, media (RTP) will start.


What are the Benefits Bandwidth’s Codec Feature

Bandwidth aims to provide a diverse group of features within our services that meet all of our customers needs. Codec is one such feature that enables audio to transfer from one device to the other by converting it into a digital signal. Bandwidth handles this conversion and enables communications to be carried across applications almost seamlessly. With quality, reliable service, Bandwidth enables Codec to give our customers the ability to master the communications that they need so they can focus on what matters most to their business.



Where We Talk About Codec

On our site

  • Hello! Can you hear me now? What network parameters affect voice quality in VoIP
  • Bandwidth SIP Trunking
  • In our downloads

  • Delivering Quality Real-Time Communications
  • Embedding Real-Time Communications into Apps
  • Bandwidth Network Services Overview


    Return to full list

    Our lawyers have asked us to remind you that, in the event of any conflict between these defined terms and the defined terms included in any agreement between you and Bandwidth, the agreement controls.

    “Bandwidth” refers to Bandwidth Inc. and/or CLEC, LLC.