XT65/XT75 Hardware Interface Overview
1.3 Regulatory and Type Approval Information
s
XT65_XT75_HO_v00.130
Page 13 of 67
2006-10-12
Confidential / Preliminary
IMPORTANT!
Cellular terminals or mobiles operate using radio signals and cellular networks. Because of
this, connection cannot be guaranteed at all times under all conditions. Therefore, you should
never rely solely upon any wireless device for essential communications, for example emer-
gency calls.
Remember, in order to make or receive calls, the cellular terminal or mobile must be switched
on and in a service area with adequate cellular signal strength.
Some networks do not allow for emergency calls if certain network services or phone features
are in use (e.g. lock functions, fixed dialing etc.). You may need to deactivate those features
before you can make an emergency call.
Some networks require that a valid SIM card be properly inserted in the cellular terminal or
mobile.
Bear in mind that exposure to excessive levels of noise can cause physical damage to users!
With regard to acoustic shock, the cellular application must be designed to avoid unintentional
increase of amplification, e.g. for a highly sensitive earpiece. A protection circuit should be
implemented in the cellular application.