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AR Router Troubleshooting Guide

This Product Documentation provides guidance for maintaining AR Enterprise Router, covering common information collection and fault diagnostic commands, typical fault troubleshooting guide, and troubleshooting.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Why Is the Busy Tone Heard When I Pick up the Phone?

Why Is the Busy Tone Heard When I Pick up the Phone?

The possible reasons are:
  • The license is not correctly installed.

    To use the voice PBX function, apply for and install a commercial license. Run the display license state command to verify that the license status is normal.

  • No valid PBX user is configured.

    Ensure that the PBX device identifier and PBX user identifier are correctly configured. For details, see the Configure the PBX User in the voice configuration manual.

  • The DSP resources are insufficient.

    Run the display voice dsp-dimm stateslot/dsp-index  |  channel  slot/dsp-index/channel  }  command. The idle item in the command output shows the remaining DSP resources. For example:
    NOTE:

    For V200R002C00 and earlier versions, run the display voice dsp-dimm stateslot/dsp-index  |  channel  slot/dsp-index/channel   } command to view the usage of DSP resources. For versions later than V200R002C00, run the display voice dsp stateslot/dsp-index  |  channel  slot/dsp-index/channel   } command to view the usage of DSP resources. The following uses a version earlier than V200R002C00 as an example:

    <Huawei> display voice dsp-dimm state 15/0 Symbol: 0-idle $-G.711 busy A-All busy W-Wastage X-fault @-IP loopback *-PCM loopback #-prohibited Channel NO.  DSP channel state ---------------------------------------------------------------------- 
    
      0000-0049  00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 
    
      0050-0099  00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 
    
      0100-0149  00000 00000 00000 00000 00000 000                           
    
      Total:                                                                 
    
          128 DSP channel                                                    
    
          128 idle, 0 G.711 Busy, 0 All Busy, 0 Wastage, 0 Fault,            
    
          0   IP loopback, 0 PCM loopback, 0 prohibited
    
    In the preceding information, 128 idle indicates that 128 DSP channels are idle and the current DSP resources are sufficient.

If the fault persists, contact Huawei technical support personnel.

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Updated: 2019-05-10

Document ID: EDOC1000079719

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