AASTRA SIP-DECT (Release 3.0)- OM System Manual - Installation, Administration and Maintenance EN - Manual (Page 199)

SIP–DECT OM System Manual Release 3.0 9 Configuration und Administration Aspects
Aastra depl-1624/1.0 Page: 199 (241)
throughput, especially in environments where reflection and attenuation cause problems for
HF.
Fragmentation Threshold
In environments where there is lot of interference and poor radio quality, reducing the
fragment size below 1500 bytes can improve the effective throughput. However, transmitted
data frames have to be fragmented, which means a higher load on the RFP’s processor.
DTIM Period
The DTIM period specifies the interval between transmissions of the broadcast and multicast
packets. All WLAN clients must be active during this interval. Increasing the DTIM period
lowers the clients power consumption slightly. Not all programs can manage the increase in
response times, however.
Channel Allocation
Every WLAN RFP must be configured to a channel. You should ensure that the channel
settings do not overlap. WLAN RFPs within range of each other should be configured at least
five channels apart. When the radio field is planned, the WLAN RFPs of foreign WLANs that
may be operating in the vicinity must be taken into account.
When planning the radio coverage for a two-dimensional area, please bear in mind that the
distance between any two base stations operating on the same frequency must be at least
twice their range. The range can be adjusted by lowering the output power level.