What is the impact on the SpectraLink i640 Wireless Telephone battery life?
The available talk time on the SpectraLink i640 is reduced at a faster rate when using the push-to-talk mode. The battery consumption is dependent on the recipient’s volume settings and how frequently PTT broadcasts are originated. The reduction rate compared to telephone mode talk time is typically twice as high, although it can be as high as four times as much with maximum speaker volume. In other words, every one minute of PTT broadcasting consumes on average two minutes (and in the worst case four minutes) of talk-time related battery life. Fortunately PTT conversations are short in duration, and the overall affect on talk time should be limited. The additional consumption of standby time related to the PTT mode is dependent on several network conditions. Any broadcast or multicast traffic, including multicast traffic from all PTT channels, will consume standby time at a faster rate than if no multicasting is used. Standby time can be impacted as much as 50% (40 hours maximum) depe
