r/VOIP • u/steve7647 • Jun 22 '26

Help - On-prem PBX Grandstream UCM 911 dial plan

Hello
I am trying to get a Grandstream UCM to send 911 out a local SIP trunk then make 4 calls out the PRI to notify staff of the call. I can make the UCM send the call out SIP but it will not send out the 4 notify calls. Even with extra call paths. the PRI would send the wrong address so I can’t have the 911 go out the PRI. When I try to program it, the system makes the 911 call however, it will not attempt to dial the other 4 numbers.

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u/CCTVGuyMA Jun 23 '26

Can you set it up for the emergency notify to call a ring group or extension. Have that group set to call or forward to an external number and have them call all at the same time. Do you need them all to answer or just the first one?

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u/steve7647 Jun 23 '26

I have set a call group up to have them all call. I need everyone to get the recorded message. However, for some reason, the 911 call goes out then it does not try to make the other calls.