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Cisco Bug: CSCuq23360 - H323 GW plays ringback after H225 connect for PRI calls

Last Modified

Nov 27, 2020

Products (2)

  • Cisco 2600 Series Multiservice Platforms
  • Cisco 2600 Series Multiservice Platforms

Known Affected Releases

15.2(4)M 15.3(2.24)T 15.4(2.12)T

Description (partial)

Caller continuously hears ringback tone while called party is able to hear caller. Two way audio is established after HOLD-RESUME.

Call Flow 
PSTN -> PRI -> GW -> H323 -> CUCM .

This issue is reproduced when using Native Call Queue functionality in CUCM 9.X or above.

A Similar issue for FXO lines is addressed in CSCue29351
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  • Status
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