Spectralink E340 Benutzerhandbuch

Seite von 60
SpectraLink Corporation 
Configuration and Administration—NetLink e340/i640 Wireless Telephone 
 
Mitel Networks 3300 and SX-200 ICP and 5220 IP Phone emulation 
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. 
PN: 72-1084-02-E.doc 
Page 51