Setting up nomorobo involved creating a new ring group with your usual members plus a new forwarding entry that takes incoming calls and forwards them to nomorobo which does the spam filtering (mostly). However, by definition, a ring group means that ALL members ring at the same time. In my case, this means a single (ONE) ring for at least some sub-accounts before the call is intercepted by nomorobo. Is there any known solution to this problem?
I think it only work with one phone number for Nomorobo because on https://wiki.voip.ms/article/Nomorobo it show :
Note: You can only select one destination with “Nomorobo Call Forwarding”.
If you need to protect multiple DIDs or SubAccounts with Nomorobo, you need to create a ring group for each DID,
but you can use the same Nomorobo phone number in each one.
Yes, but that is not my question. The members of the RING GROUP are all for the SAME DID number which means (by definition) they all ring “at the same time,” however the forwarding to nomorobo is supposed to happen first so that you don’t hear any ring on any sub-account phone while the nomorobo magic is taking place. There seems to be no way to set the forwarding to actually happen before anything else. Yes, it does so in practice, but not without causing other ring group members to ring.
Hi olejacobsen,
The behavior your are reporting here is the way Nomorobo is designed. Here is an excerpt from their support web site:
So, when the Nomorobo number is enabled as a simultaneous ring number it is the first number to screen the call. If it’s a legitimate call, the call goes through to your number. If the call is an illegal robocaller, Nomorobo intercepts the call and hangs up for you. Your phone will ring once letting you know that the robocall has been answered and stopped.
If you want to avoid the single ring when you receive a robocall, you may use the Call Hunting feature to let Nomorobo forwarder be the first member to receive the call. Then the second member will be your Ring Group that makes all your phones ring at the same time. Of course, the Call hunting has to be set to “Follow order” as the Ring Order. With this configuration, Nomorobo has to be removed from your ring group.
The drawback, if you set the first member of the Hunting to Nomorobo’s forwarder with a 5 seconds timeout (may need more time if Nomorobo takes too much time to handle an undesired call), then any legitimate phone call (not intercepted by Nomorobo) will only start ringing on your phones at the second ring for the caller because the first ring would be used to give time for Nomorobo to intercept the call. If your people answering the phone are usually responding quickly, an additional ring should not be a problem for the callers. If your people are often away from their phone and typically need 4 or 5 rings to answer, the caller may not be that patient (it would be the 5th or 6th rings for the caller) and he/she may hang up. Depending on how you set the voicemail, more calls may end up being answered by the voicemail instead of a human. This is unfortunately a trade-off that you may have to make if you want to get rid of the single ring when Nomorobo intercepts a call.
Hope this will be helpful.
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Thank you! This is indeed very helpful. I am just surprised that no mention of this “feature” is made in the nomorobo Wiki article, nor did tech support seem to know anything about it. My setup is for a home, so having the extra (non) ring isn’t going to be a problem and will avoid early morning wake-up rings in the bedroom. It would be REALLY useful to have time-conditional DND on DIDs, but that isn’t available from voip.ms. But thank you for the workaround!
Hello @olejacobsen,
I am using a “Time Conditions” option to forward call to a Ring Group during the day and to an IVR during what I assume night. The IVR is simple: this is a press X to really reach us (because it is late) or simply leave a message after the tone.
I virtually have a time-based DND and people can still reach us when super important.
Then, simply set you DID to go to that “Time Conditions” and you are good to go! 
Kind regards!
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I was about to suggest the same thing but you replied faster than me 
In this cas, the Time Condition would route the call to the Call Hunting which will, then, sent it successively to Nomorobo and the Ring Group.
I like the idea of an IVR during the night instead of muting the ring or sending all calls to a voicemail. Robocalls that manage to bypass Nomorobo will not be able to act on the prompt and be dropped as a human will still be able to get through. The only downside here are scammers calling at any time who can still press the proper key to make the phones ring… but this is another topic.
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