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Cisco Bug: CSCsz35317 - Port with hold/resume for shared line enabled stuck at onhook_disconn

Last Modified

Feb 21, 2018

Products (1)

  • Cisco VG Series Gateways

Known Affected Releases

12.4(24)T

Description (partial)

Symptom:

A FXS port with hold-resume for shared line feature configured will fall into onhook_disconn status under a specific call flow. When the port get into this status, caller hear dead air instead of dial tone.

Conditions:

2000(fxs of vg224)---ccm(5.1.3.4000-4)----H323-----GW-----PSTN------external number 1000

1. 2000 call 1000, after 1000 answered the call, 2000 press HF then get into hold status.

2.  press hook flash twice very fast, then the line get into transfer mode. However, do not input any number and hang up, the first call won't disconnect from CCM side. 

3. Call another number does not exist, CCM give me wrong number announcement and I hang up again. 

4. pick 2000 up, no dial tone any more, the port get into ONHOOK_DISCONN.
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