FAQ-Why Is the Busy Tone Heard When I Pick up the Phone

Publication Date:  2015-05-06 Views:  207 Downloads:  0
Issue Description
Why Is the Busy Tone Heard When I Pick up the Phone?
Solution
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 state {  slot/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 state {  slot/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 state {  slot/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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