PRA Trunk random outgoing calls fail

Latest reply: Aug 31, 2019 13:16:42 108 2 5 0

This post relates to the PRA Trunk random outgoing calls fail. Please see more details below.

【Problem description】

We found that some outgoing calls randomly failed to be established and the customer heard a busy tone. 

【Problem analysis】

We found that the customer purchased only 10 ports from the service provider side, so when the call hits the un-purchased ports, it fails to be connected. 

【Root cause】


When the outgoing calls  hits the un-purchased ports, the call can't be routed outside. 

【Solution description】

1. We logged in to the LMT configuration mode.

2. We executed the following command along with the customer in order to disable using the unpurchased ports and the customer confirmed it was working fine:

config modify board slot x type mtu tkcinboard 11 direction incoming.

3. We should select all the unpurchased ports like 11, 12, etc.

【Suggestions and reccomendations】

Before the configuration, we must determine how many ports are purchased and stick to the documentation and configuration guide.

  • x
  • convention:

Created Aug 18, 2019 08:09:47 Helpful(0) Helpful(0)

can you please share screenshots for determining the root cause, thanks
  • x
  • convention:

Created Aug 31, 2019 13:16:42 Helpful(0) Helpful(0)

can you illustrate the command ?
  • x
  • convention:


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