These devices would mostly be used as a PRI hand-off. Network Routing. Apply and Save.Use the following settings on the configuration page.If your SIP Trunk failed to register and you have verified the steps above, you can troubleshoot further by selecting Utilities > Logging > Event History. PRI, T1 CAS or Analog Trunks Delivered to PBX/KTS . voice grouped-trunk Location2. Optical Networking Edge (ONE) WAN Access. These devices would mostly be used as a PRI hand-off.Navigate to Voice > Trunks > Trunk GroupOn the next page, select Add Members, and add the SIP Trunk that you created in previous steps. Then select the Outbound Calling Templates that will be used for this SIP Trunk. This guide will only entail information relating to the SIP Trunk set up.To enable PRI calls outbound you will need to set up a Trunk Group.Navigate to Voice > Trunks > Trunk AccountsAt this point, you should have successful registration, which can be seen under Voice > Reports > Trunk Registration Mobile Backhaul. Wireless. trunk T01. The Total Access900/900e Series is an ideal … IP Telephony Systems. The client just wants to do four (4) digit dialing between the sites using BroadBand and not the PSTN. Hosted VoIP/IP Centrex. What would be my set up scenario?Lastly, if SIP and RTP will be traversing a converged (VoIP and data IP traffic) network, just make sure that QoS will be implemented between the sites to prioritize DSCP 46 and ensure toll-quality voice.You can use that template for all your sites. Also, the for the PRI side of the unit, the following link has an example configuration.Does each location have a different extension prefix?Yes each location has a different extension prefix Ethernet Switching. Total Access 9XXe - SIP to PRI sample configuration. Also, the for the PRI side of the unit, the following link has an example configuration. Site-to-Site Voice and Data Connectivity using SIP Networking. Using the NetVanta 7000 Series T1/PRIVoice Interface Module (VIM), customers can consolidate separate voice lines and Internet access onto a single T1 or PRI trunk. The logs should lead you to the issue, which could be relating to your Network set up.Under 'Add a new Trunk Group, create a Group name and click Add.From your dashboard under Manage PBX, navigate to SIP Trunks. You can use that template for all your sites. Thanks for posting! I believe you are working this issue through a normal support ticket. However, you can create three SIP trunks for each unit which specifies a SIP server as the corresponding far-end Adtran unit's IP address. Each of the SIP trunks would have a grouped trunk that specifies the extension range at that site. Below is a template for you to follow.I forgot to add this is not an MPLS Network.sip-server primary <IP address of Adtran unit at this location>Here is my scenario.