Outdoor range
Handset range outdoors. Usually, the specs indicate the range in line-of-sight conditions, that is, with the complete absence of obstacles between the handset and the base; thus, the outdoor range may be less than claimed due to the presence of obstacles (houses, trees, etc.).
GAP Support
GAP(General Access Protocol) is an extension to the DECT standard (see Communication Standard) that provides compatibility between handsets and bases from different manufacturers. Thus, handsets supporting this standard can be easily connected to a base with GAP support, regardless of whether they are from the same bundle or not, whether they are made by the same manufacturer or by another — the main features of the phone, such as dialing and talking, will be available to the user anyway. At the same time, GAP support does not guarantee the possibility of using additional features (for example, managing an answering machine). Also, the GAP protocol allows you to connect several handsets to one base at the same time and vice versa, one handset to several bases.
Handsets supported (base)
The number of handsets that can be simultaneously connected to one radiotelephone base using GAP technology (see above).
If the base supports the connection of several handsets, you can actually organize a paired (triple, quad, etc.) telephone without purchasing additional bases (for which you would have to organize your own connection to the telephone network). And some models may have additional features available, such as handset-to-handset communication (see Features/Specs).
Bases supported (handset)
The number of bases to which a radiotelephone handset can be simultaneously connected using GAP technology (see above).
Connecting to multiple bases can be useful when you have to deal with several phone numbers, and the call to be answered can come from any of them. At the same time, the real need for such a mode of operation is very rare, so modern handsets rarely support more than one base (and in many GAP-compatible models this parameter is not indicated at all).
Ringtones
The number of ringtones stored in the phone's memory. The bigger the number of melodies, the wider the user's options to choose the melody to his liking.
Standby time
The maximum operating time of the handset on one full battery charge, without contact with the base, in standby mode, that is, when no actions are taken with the handset. Note that at the end of the maximum time in standby mode, the battery charge may be so small that when a call arrives, the handset may simply not be able to support it for any long time. Therefore, without a serious need, you should not keep the handset out of the base for long, and it is better to return it for recharge in advance.
Talk Time
The maximum time of operation of the handset on one full charge of the battery in talk mode. Long talk time will be relevant for those who expect to regularly conduct long telephone conversations.
