Grandstream GXW-4104 Breaks all inbound calls

[Steve Medley]

We have a 3CX setup that's been using Patton, however due to being unsatisfied with Patton outbound call delay we purchased the Grandstream GXW-4104. It handled the outbound call delay issue just fine, however as soon as I connected it all inbound calls stopped working.

After 40 mins of troubleshooting I had to switch back to the Patton as it is a Doctors office and they couldn't have the phones down any longer.

Once I did, the inbound calls were completely broken now, even removing the grandstream inbound rule didn't help and I had to restore from a backup to get it working again.

Any ideas on what could cause this? As well as how to get inbound calls working on the Grandstream? The main difference I notice in the two is on the Patton my DIDS are listed as *4045551212 *5056661313 *6067771414, etc. basically real phone numbers, whereas the Grandstream seems to require they be entered as 1111, 000000, 000001, 000002, 000003, 000004.

3CX System: Professional 16.0.3.676

 

[leejor]

For DID rules to work, the DID number being sent by the gateway must match the number(s) in the DID rules or 3CX has no idea where to route the call. This should show in the 3CX Activity Log. Have you tried adding new (additional) rules, using the DID numbers, as provisioned in the Grandstream?

 

[eddv123]

due to being unsatisfied with Patton outbound call delay

Pattons I find far superior in both build quality and feature-set so I cannot believe this is an un-fixable scenario - had you contacted Patton support previously by any chance ?

If the Patton is still in place let me know and I will help you troubleshoot both the in and outbound issues you are having.

 

[JohnS_3CX]

Hi Steve,

Had looked at the 3CX guide for this model? (inbound rules)
https://www.3cx.com/voip-gateways/grandstream-fxo/#h.5fp2r1uyj3yq