I have an extension with Follow Me configured like this:
Initial Ring Time: 10
Ring Strategy: ringallv2-prim
Ring Time: 15
Follow-Me List:
525
511
988533200#
After the initial ring time the call goes to Follow Me list as it should, but when the external phone starts to ring all other extensions (525 , 511) stop ringing. I assume this happens because when the trunk makes the call to the external number the system thinks the call has been answered. This is just my assumption.
I want all the extensions to keep ringing for the ring time (15) until someone actually answers the call, being this in the external phone ore an internal extension.
It doesnât work. To explain a little better the situation:
When someone calls the extension 525 it rings for the initial ring time (10), then it goes to Follow Me list, but in the moment the external number rings (a cellphone in this case) it stops ringing the other extensions (525 and 511). I can hear from the calling phone (some internal extension) how the ringing tone changes from the internal PBX to the trunk.
I recall seeing reports about this in the past. The only solution I can remember is to make the cell phone a destination for the âon errorâ at the end of the FMFM. I think itâs because some carriers mark the phone call as âansweredâ at the remote phone as soon as the phone connects to the network. FreePBX does something similar with Fax detection by âansweringâ the call to see if there are FAX tones and letting the call fall through to the extension if there arenât.
Another possible solution would be to make the cell phone an extension by assigning it a value through Misc Dest (IIIRC). This might not make any difference, but it does mean that the cell phone is now an extension rather than a remote destination.
Iâd be willing to bet itâs the gateway doing a FAX check thatâs causing the problem. Someone with more Grandstream Gateway experience may be able to offer more insight - Iâm a SIP and SCCP guy.
I did some tests and it seems that the grandstream gateway is âansweringâ the call and sending the providerâs ring tone to the caller. This effectively makes the call as answered and stops ringing the other extensions.
I have another gateway which is used for GSM. If I use this gateway I donât have the problem. The cell phone and the extensions ring at the same time. So, as a workaround I have created a special outbound route that is used only in the FM and prioritizes the GSM trunks.
I canât tell what configuration needs to be changed in the grandstream gateway. Iâm very lost there. Some grandstream guru??
The probes here is you are using pots the cannot determine when a call is answered. The call is considered answered when itâs starts ringing. To achieve what you want you need either a sip line from your provider or a digital line such as an Isdn. An analogue pots line will not cu the mustard.
There is an option in the grandstream gateway (GXW4104) named âEnable Call Supervisionâ. If I enable this for all channels then things seem to work. Now the FMFM is ringing in the cell phone and extensions until someone actually answers the call. But the big problem here is that now the caller hears nothing, no ring tone, nothing until someone answers. Weird.
Looks nice, but I think it will add more complexity for my users, which could be external people.
There should be some other option in the granstream gateway that Iâm missing. I will try my luck with grandstream support/forums/community.
Hi,
I tried all the tests, but the followme module does not transfer calls to me on an external number, the line hung up
can someone help me?
thank you
I found a solution
in outbound-route add 3 Trunk Sequence, Followme will use the Trunk Sequence 3.
why?
if Trunk Sequence 1 and 2 are free, why do you skip to 3 trunk?
can you tell me how to divert followme on Trunk Sequence 1?