How to Free Up Resources on Your ShoreTel/Mitel Switches

March 25, 2020

When a phone registers to a switch in a ShoreTel/Mitel system, that registration stays in the system until it is either updated (user switching to another phone, phone moving to another user) or manually removed. This can cause switches to fill up on IP phone resources over time. IP Phones and softphones, even if being used by the same user, take up one IP Phone resource each. It is suggested that you periodically clean up the IP Phone resources in the system to ensure there is room on the switches for new phone connections.

ShoreTel 14.2

In Director, navigate to Administration > IP Phones > Individual IP Phones. This is a list of all the IP Phone resources that have registered to the system and includes all phone models, softphones, and SIP phone registrations. You can see what a switch’s current IP Phone resource load is by navigating to Administration > Platform Hardware > Primary, and checking the ‘IP Phones In Use’ versus the ‘IP Phone Capacity’ column. You’ll also want to make sure that your current switches have any unused ports set to ‘5 IP Phones’ instead of ‘Available’ on any SG model switches.

Mitel MiVoice Connect

In Director, navigate to Administration > Telephones > Telephones. This is a list of all the IP Phone resources that have registered to the system and includes all phone models, softphones, and SIP phone registrations. You can see what a switch’s current IP Phone resource load is by navigating to Administration > Appliances/Servers > Platform Equipment, and checking the ‘IP Phones In Use’ versus the ‘IP Phone Capacity’ column. You’ll also want to make sure that your current switches have any unused ports set to ‘5 IP Phones’ instead of ‘Available’ on any SG model switches.

To remove entries, click the box next to the entry you wish to remove and click the ‘Delete’ button. Ensure you only have users you want to remove selected.
It’s important to note that removing IP phone registrations from this section will unassign any user from that phone. If the phones are deleted from this section, but are still powered on, they will be automatically re-added to the list the next time they check in to their managing switch (every 2-3 minutes).

Suggestions for cleaning up IP Phone Resources:

  • Sort the list of IP phones by ‘IP Address’. Any phones with no listed IP address did not finish registering to the system and can safely be removed.
  • Sort the list by ‘Expiration’. This is only applicable to 400 series phones, the older MGCP phones did not have an Expiration timer. 400 series phones will show an Expiration date that is updated on a 2-3 minute cycle. Any phones that have an Expiration date that is more than an hour old are more than likely unplugged and can be removed.
  • Sort the list by ‘Current User’. All the Softphones and IP phone models that do not have a Current AND Home user are not in use in the system and can be removed. Any Softphones and IP phones that do not have a Current user but do have a Home user are possibly still in use by a user as a Primary or Secondary phone. Use caution when removing these entries.

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