CM 8.1 EC500 Issue.

[RedTech443]

When calling a deskphone with EC500 enabled it will ring the attached cell phone. Once in a while if the cell phone is answered on the first ring the cell phone will get disconnected and the desk phone will continue to ring, is there anything I can look at to help mitigate this from happening?

I though system-parameters coverage-forwarding page 2, but I do not see anything that would help in this situation??

                SYSTEM PARAMETERS CALL COVERAGE / CALL FORWARDING

COVERAGE OF CALLS REDIRECTED OFF-NET (CCRON)

                       Coverage Of Calls Redirected Off-Net Enabled? y
 Activate Answer Detection (Preserves SBA) On Final CCRON Cvg Point? y
                                  Ignore Network Answer Supervision? n
                 Disable call classifier for CCRON over ISDN trunks? n
                  Disable call classifier for CCRON over SIP trunks? n

 

[ZeroZeroOne]

That's a new on for me. Typically, I see zero rings or delays reaching the mobile.

Still, maybe in a new config?

display off-pbx-telephone configuration-set 3

                                     CONFIGURATION SET: 3

                         Configuration Set Description:
                                  Calling Number Style: network
                                   CDR for Origination: phone-number
                    CDR for Calls to EC500 Destination? y
                           Fast Connect on Origination? n
                          Post Connect Dialing Options: dtmf
                         Cellular Voice Mail Detection: timed  (seconds): 4
                                         Barge-in Tone? n
                           Calling Number Verification? y
             Call Appearance Selection for Origination: primary-first
                                      [highlight #EF2929]Confirmed Answer? n[/highlight]

 Use Shared Voice Connections for Second Call Answered? n Initiated? n
 Provide Forced Local Ringback for EC500? n    EC500Delay Deactivation State? y
                        Apply Ringback upon Receipt of: Call-Proceeding

              Location to Route Incoming Overlap Calls: station-location-if-set
               Feature Invocation by In-Call DTMF Code? n

I don't know if the Confirmed Answer set to "y" would make a difference but it may be worth a try.

Of course, you could always tell the users to wait for two rings...

 

[RedTech443]

Thanks for the reply! I was thinking about the 2 ring thing too!!

 

[SharkySeph]

What is actually causing this is the "Cellular Voice Mail Detection: timed (seconds): 4. This prevents a cell's voicemail from "answering" the call immediately. If you remove that though, then if the phone returns a busy signal or a cell's voicemail picks up the call will end the ringing on both sides as the call will be answered.

 

[dialtonebone]

Do confirmed answer. It's the one way that mostly guarantees the function and comes with the added benefit of being able to know when a call is ec500 vs direct to the mobile number.
Confirmed answer plays a dial tone to the end user, and they need to push any DTMF to answer ... or hang up and the call will go unanswered (likely coverage).