Grandstream: Incoming call not routed to TopView

Grandstream: Incoming call not routed to TopView

This KB assumes that you have correctly configured TopView the Grandstream for incoming calls.
See the Grandstream configuration document for more information.

Verify that there is only one TopView softphone listening on the extension 

The Grandstream is configured to route an incoming call to an extension.
If there are multiple TopView softphones registered to this extension, only one of them will receive the incoming call.
  1. Run TopView Admin Tools
  2. From the left menu, select "Softphones"
  3. Show for: select "All running Engines"
  4. Verify that there is only one softphone listed for the extension

Verify that TopView is listening for incoming calls 

  1. Run TopView Admin Tools
  2. If you have multiple TopView Engines running, make sure the correct Engine is selected in the dropdown at the top of the screen
  3. From the left menu, select "Voice Dial-In Status"
  4. Verify the extension, listening, and line status


Verify that the Grandstream sees the incoming call

Log into the web UI of the Grandstream
Go to System Status > Dashboard

When idle, the analog trunk should be blue


Make a phone call to the analog line phone number. The color should change to yellow.


Try to change the Caller ID Scheme

Log into the web UI of the Grandstream
  1. Go to Extension/Trunk > Analog trunks
  2. Edit the analog trunk
  3. Change the Caller ID Scheme to “Auto Detect”
  4. Save and Apply changes

    • Related Articles

    • Troubleshooting voice call issues with the Grandstream UCM 6xxx devices

      TopView can make VOIP calls for notifications through the Grandstream in order to call through an analog line. This article provides a number of methods to verify your system is able to make voice calls through this device. If you have not yet ...
    • Active outgoing voice call "stuck"

      This article provides information for users experiencing that phone calls from TopView not progressing. Versions affected: 7.2 and earlier Patch: available for v7.2 on the TopView 7.2 download page Symptoms Outgoing calls are not being received ...
    • VOIP Phone call register/unregister issues

      Overview TopView Voice Notification makes VOIP phone calls for alarm notification. The VOIP protocol is SIP. TopView is a "SIP client" that connects to the SIP Server to make phone calls. Each phone call in TopView is made by a separate call process ...
    • SIP.US Call settings for TopView and troubleshooting

      Overview TopView supports online/hosted SIP Servers for TopView Voice Notification call out. SIP.US is a hosted SIP Server. While most SIP Servers will work with TopView, we have tested a few and can recommend them for use with TopView: see TopView ...
    • Ports used during TopView operation

      TopView can utilize a number of ports to perform its job, configure your firewall to allow communication over the following ports: Data source related ports OPC requires the use of DCOM, which is negotiated over port 135 TCP. The client and server ...