What are the possible causes of one-way audio during a voice call?

lidong103 · Created Oct 14, 2019 07:18:58

usually it is due to network. such as frewall or router nat alg / sip alg.

lidong103 · Created Oct 14, 2019 07:18:58

usually it is due to network. such as frewall or router nat alg / sip alg.

wissal · Created Oct 14, 2019 08:26:18

Hello,

One-way audio is a fault that a user can dial a phone number and hear the ring tone, but only the tone of one party can be heard in a voice call.

TC-C6001 One-Way Audio Because of Improper Configuration of the Voice IP Routing
This topic describes how to troubleshoot the fault when one-way audio occurs because the configuration of the voice IP routing of an ONU is improper.
TC-C6013 One-Way Audio Because of the ACL Configured on the Bearer Network
This topic describes how to troubleshoot the fault when one-way audio occurs during the conversation of a voice user connected to an ONU because of the ACL configured on the bearer network.
TC-C6037 IPT Service of the Caller Fails Because of Inconsistent ONU Dialing Mode
This topic describes how to troubleshoot the fault when the caller service of the intelligent public telephone (IPT) service fails.
TC-C6051 One-Way Audio of the Voice Service on the ONU Occurs Because the Port ID Used by the Media Stream Is Masked on the Bearer Network
This topic describes how to troubleshoot the fault when one-way audio of the voice service on the ONU occurs because the port ID used by the media stream is masked on the bearer network.
TC-C6304 One-Way Audio Occurs in User Calls Due to the OSPF Route Configuration Conflict Between Two OLTs
This topic describes how to troubleshoot the fault of one-way audio in user calls.
TC-C8016 One-Way Audio for SIP Calling Party Due to Different Port IDs in SDPs Sent by Softswitch
This case describes how to troubleshoot the one-way audio encountered by the calling party of a Session Initiation Protocol (SIP) terminal. The fault occurs because the port IDs contained in the Session Description Protocol (SDP) information sent by the softswitch are different.
TC-C8021 One-Way Audio When Calling Certain Numbers Due to VRRP Protection
This case describes how to troubleshoot the one-way audio encountered by optical network unit (ONU) users when calling certain numbers. This fault occurs because the Virtual Router Redundancy Protocol (VRRP) is enabled on the upper layer devices of the ONU.
TC-C8022 One-Way Audio on a 3G Site Connected to ONU Due to Unknown Unicast Suppression
This case describes how to troubleshoot a one-way audio that occurs on a third-generation (3G) site connected to an ONU. The fault is caused by unknown unicast suppression enabled on the ONU.
TC-C8029 One-Way Audio Due to Inconsistent Coding Modes on the IMS and ONU
This case describes how to troubleshoot one-way audio on an optical network unit (ONU) that occurs because the coding modes on the ONU and the IP multimedia subsystem (IMS) are inconsistent.
TC-C8123 ONU Voice Users Encounter One-Way Audio Because BRAS Incorrectly Sets CFI
This topic describes how to troubleshoot the one-way audio encountered by ONU(A) voice users because the broadband remote access server (BRAS) incorrectly sets the canonical format indicator (CFI).

Thanks

What are the possible causes of one-way audio during a voice call?

Best answer

Third Party’s Trade Secret

My Followers

Enterprise

Consumer

Corporate

Carriers

What are the possible causes of one-way audio during a voice call?

Best answer

Third Party’s Trade Secret

My Followers