codec

  1. Three different places to set codec priority?

    I am trying to see if there is anything I can do to improve call audio quality which has lead me to checking codec priorities. I have read through Which Codecs does 3CX support and when? and have a rough understanding of how codec priorities work. If I understand correctly there is a matching...
    • ASTERHC
    • Thread
    • audio codecs codec codec preference codec priority codecs codecs extensions
    • Replies: 14
    • Forum: Phone System / PBX
  2. SaraMarlar

    Codecs / Transcoding

    Hey guys, we completed a migration for a new client yesterday and they expressed that audio quality doesn't seem to be as good as before. They're using their pre-existing Yealink T48G phones, we set them up on a new cloud hosted V20 system with an enterprise license. We use Bandwidth.com trunks...

  3. Solved Phones[0].Codecs: WARNINGS.XAPI.REQUIRED

    NEW TO 3CX I booted up a new phone Yealink T-43U I have version 20 3CX The Phone show up inside PNP Phones in the 3cx software however when i try to assign the phone to an existing user i get the following error in red "Phones[0].Codecs: WARNINGS.XAPI.REQUIRED" I can't go any further...
  4. U-A

    OPUS codec missing from template for Yealink T57W

    On one of the hosted systems that I manage OPUS codec is missing as an option for a T57W. I should mention that I have nearly identical setups(3cx cloud, also T57W) at other clients that have OPUS so I have no idea why its not available here.

  5. Door Phone with Video

    Hello, I am looking for a door phone which will work with video and be able to make video calls with the new 3CX desktop App as well as the Mobile client on Android and iOS. I have found the Fanvil and Grandstream products, but keep on stumbling over sources which claim that the video won't work...

  6. 3cx Web Client (WebRTC) forcing OPUS on outgoing calls [twilio trunk]

    Hey there, I've been going through everything here and seen a few posts around this idea but many of them had not quite correctly identified the issue. Here is what is happening. I use twilio as my outgoing trunk, therefore I want all traffic to be using PCMU/PCMA as that's all the support. This...
    • Medwing
    • Thread
    • codec opus twilio webclient
    • Replies: 0
    • Forum: Web Client

  7. Change phones' codec priority through templates

    Hello, We are using latest 15.5 SP6 for our 3cx and latest provisioning templates for our Polycom VVX 4xx,6xx and Yealinks T2xP (version 80502). We have been trying to change the priority of the G.711a-law codec on the phones, so that it is used first in the SDP. Our target is to change the...
    • George Ts
    • Thread
    • codec codec priority polycom priority t26p t28p templates vvx yealink
    • Replies: 21
    • Forum: Phone System / PBX

  8. Disable Transcoding

    If an HD codec is used for internal calls (Opus, G722) and for the provider e.g. only G711 is available, is automatically transcoded at "PBX Delivers Audio active" and the voice quality is severely impaired. In some VPN scenarios it is better if "PBX Delivers Audio" is enabled on the Sip trunk...
    • moritz
    • Thread
    • codec codec preference codec priority g.711 mediaserver g.722 opus transcoding
    • Replies: 5
    • Forum: Server

  9. Opus Codec Constant Bitrate Support

    Is there an option to set a constant bitrate for OPUS? It seems that the only option currently available, is variable. Thanks

  10. Trying to figure out codec usage

    I'm slightly confused by a few settings regarding codec usage. Here is my scenario: 1 office 1 PBX in the cloud 10 Users => 20 Endpoints of which 10 3CX windows clients and 10 mobile 3CX clients. Q1. When defining an extension, I supply provisioning rules with a specific codec order. I...

  11. Transcoding G.722

    Hello, I have an issue with external calls when checking box "PBX Delivers Audio" at SIP Trunk level. It looks like the phone is establishing the call using codec G.722 (on the phone Yealink T46S phone I can see the "HD" label) but the leg between the PBX and the SIP Trunk is using G.711a. The...

  12. Mac Client - lower voice quality than on hardphones or iOS client

    Hi, I am new to 3CX and have the plan to use mainly 3CX softphones in our company instead of the old hardphones. The problem we are currently facing is that the sound quality is different from client to client and the softphones on our macbooks deliver the worst quality of all compared. It is...
    • garfieldx
    • Thread
    • codec mac mac client mac osx quality sofphone softclient sound volume
    • Replies: 7
    • Forum: iOS

  13. 3cx Call Control Api - Add Codecs to Extension

    Hi, I'm trying to create new extensions and associate them with existing codecs. I'm creating the extension with the following code: newExt = PhoneSystem.Root.GetTenants()[0].CreateExtension(newExtNumber); newExt.FirstName = newExtFirstName...

  14. Add Default codec order for new extensions

    Dear 3CX Please add option to change default codecs order, so when adding new extension we don't have to change those every time. Best Regards
    • Maciej
    • Thread
    • codec extension
    • Replies: 1
    • Forum: Server
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