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Cisco Bug: CSCur32547 - VXML Gateway HTTP Request should compare etag field for WAV update

Last Modified

Jul 31, 2017

Products (1)

  • Cisco 3900 Series Integrated Services Routers

Known Affected Releases

n/a

Description (partial)

Symptom:
Customer changed the WAV. The WAV remains the same name and stored in the same location.
No other action was performed after the change of WAV name, such audio load, set http client cache stale commands on the router.
The new WAV is not played or get updated on IOS GW

Conditions:
New/Replaced WAV file has same name and Last-Modified date is older.
eg 
Old SOM_E_en-US_1000-001.wav  has Last-Modified: Sat, 04 Oct 2014 15:16:14 GMT
New SOM_E_en-US_1000-001.wav  has Last-Modified: Sat, 20 Sep 2014 20:17:47 GMT

Because of the Old WAV had a newer Last-Modified date, Client IOS is receiving a ?Message Response Code: 304? and is not triggering the new WAV update.
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