SpectraLink Corporation | Configuration and |
| Mitel Networks 3300 and |
12. Troubleshooting NetLink Wireless Telephone Problems
NetLink Wireless Telephones can exhibit transmission problems in several ways. They can cease functioning properly, display error messages, or display incorrect data. When using and troubleshooting handsets, consider the following problem sources to determine the best method of approaching any specific situation.
12.1 Access Point Problems
Most, but not all, handset audio problems have to do with access point range, positioning and capacity. Performing a Site Survey as described in this document can isolate the AP causing these types of problems. If the handset itself is suspected, conduct a parallel Site Survey with a handset that is known to be properly functioning.
In range/out of range
Service will be disrupted if a user moves outside the area covered by the wireless LAN access points. Service is restored if the user moves back within range. If a call drops because a user moves out of range, the handset will recover the call if the user moves back into range within a few seconds.
Capacity
In areas of heavy use, the call capacity of a particular AP may be filled. If this happens, the user will hear three chirps from the handset. The user can wait until another user terminates a call, or move within range of another AP and try the call again. If a user is on a call and moves into an area where capacity is full, the system attempts to find another AP. Due to range limitations, this may be the same as moving out of range.
Transmission Obstructions
Prior to system installation, the best location for APs for optimum transmission coverage was determined. However, small pockets of obstruction may still be present, or obstructions may be introduced into the facility after system installation. This loss of service can be restored by moving out of the obstructed area, or by adding APs.
12.2 Configuration Problems
Certain problems are associated with improper configuration of either the MGCP system or the handset.
Configuration problems are generally corrected by changing the configuration on the MGCP system or on the handset. There may also be incorrect programming of the AP. See the Configuration Note for the AP in use at the site.
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