DTMF During Conference call

[the55]

I have a client who runs a financial consulting business. His clients call and ask for advice. If they need to transfer funds or call the bank while in the phone call, my customer cannot conference in the bank because the bank will ask for PINs from the customer (automated). The customer is reluctant to give PINs to my customer and so my customer has to call them back on his personal cell phone and conference in the bank that way. Conference calls work just fine using his Verizon phone but not with 3cx (SNOM D785) desktop phones. Why is this and why cant it be implemented?

 

[JohnS_3CX]

Hi,

Snom phones use the 3CX conference server (as opposed to say a Yealink phone which creates an "on-board" conference).

The conference server "captures" DTMF because this is how you control which room to choose and what PIN to use.

Hence the DTMFs are not passed along between conference participants and if you conference a caller with the bank IVR, any buttons they press will not be passed along.

If I understood your requirement correctly, I can assure you that Snom phones will not fulfill your requirements for this very specific purpose you have in mind.

See if you have a spare Yealink, Fanvil or Grandstream device and have your client test it to see if it works for them for their specific use case.

 

[the55]

Thanks. I had just upgraded them from some old Yealink T38 phones to these SNOMs. I will ask if they can get one of the old YeaLinks out and try this. Thanks!!

 

[JohnS_3CX]

Sure thing, let us know how it goes.

Just an FYI: The Yealink is only one of the pieces in this puzzle, the rest are your trunk provider, the remote caller's provider, and the banks trunk provider. Sometimes one of the 3 will not send the correct signalling, even if you do everything 100% correctly from your end so you might have some problematic calls, but that would also be true when using the Verizon line.