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Cisco Bug: CSCsy95595 - Dialed digits may be collected out of order in certain dialing scenarios

Last Modified

Feb 22, 2014

Products (15)

  • Cisco Unified IP Phone 7900 Series
  • Cisco Unified IP Phone 7971G-GE
  • Cisco Unified IP Phone 7962G
  • Cisco Unified IP Phone 7945G
  • Cisco Unified IP Phone 7941G
  • Cisco Unified IP Phone 7911G
  • Cisco Unified IP Phone 7961G-GE
  • Cisco Unified IP Phone 7906G
  • Cisco Unified IP Phone 7975G
  • Cisco Unified IP Phone 7942G
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Known Affected Releases

8.4(4)

Description (partial)

Symptom:
On all third & fourth generation IP phones, there exists a scenario where rapid dialing may result in the digits being collected out-of-order.

Conditions:
This issue is seen on all recent IP phones.  The issue can occur in the following scenarios.  For these examples, say the user wants to dial '1234':

1. Digits '12' are dialed while the phone is onhook.  Then the handset is picked up, and '34' is dialed to finish the dialed string.  Depending on how long the user waits after the offhook before dialing '34,' the called number may appear out of order as '3124' or '3412' and setup the call for the wrong number.
 
2. The issue can also be reproduced by going offhook with the handset and then dialing '1234' very rapidly after the offhook.  This appears to be a variation of the first scenario, due to the first digit or two being dialed before the phone processes the offhook event.  Therefore, those digits are treated as the above scenario where digits are dialed before an offhook.
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Bug Details Include

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