newbie6's profile

Frequent Visitor

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13 Messages

Tuesday, June 3rd, 2025 8:11 PM

Correct Flash Duration to Connect to Waiting Caller (Xfinity Voice Service)

 I have call waiting service on my Xfinity Voice phone account.  If I'm on a call and a second caller is calling, I hear a notification chirp that there's a call waiting. I have difficulty connecting to the waiting call.  There's a "flash/call waiting" button on my phone's handset.  But when I press it, the call usually stays with the first caller, despite repeated attempts to switch.  Sometimes, pressing the button ends up disconnecting the original caller and all I hear is a dial tone.  My phone system's default  flash signal duration is 700 ms, but I can change that to numerous other values between 80 ms and 900 ms.  No one at Xfinity can tell me what duration is most compatible with their call waiting software.  Does anyone reading this forum know the optimal setting to provide optimal reliability when trying to "flash" over to the waiting caller?

Accepted Solution

Official Employee

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2.3K Messages

21 days ago

 

@newbie6 The flash signal duration when using the Call Waiting feature with Xfinity Voice can vary depending on the customers phone equipment. Unfortunately, Xfinity doesn't provide a specific, single value for the flash duration that is universally compatible. 

 

 

 

 

Frequent Visitor

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13 Messages

@XfinityMartyR​ Thanks for that information.  My phone is a Panasonic KX-TGE433.  The model of each of the 3 handsets that are included are all KX-TGEA40 handsets.  If anyone reading this thread has access to the recommended flash duration for that phone, kindly post it to this thread.  

Official Employee

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1.6K Messages

You are very welcome for the information. If you need anything further from us please let us know. 

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Frequent Visitor

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13 Messages

9 days ago

For the benefit of others who may read this thread, I contacted Panasonic customer service about the issue and their reply was that 700 msec IS the correct setting for the cordless phones I'm using, regardless of which telcom's phone service I use.  They also said that because I never had the problem using the same cordless phones at another address with a different telcom's phone service, the problem was almost certainly with my present telcom and not with the phones.

My feeling is that my current Xfinity Voice phone line and all the features I use (except for call waiting switching) have been working perfectly, it is unlikely that I have a faulty phone circuit.  I suspect that I'm not going to have a successful resolution to this problem.

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