User manual POLYCOM PTB 450

[. . . ] Put call on hold Mute/unmute microphone Adjust volume during call Hang up Press HOLD. To mute the microphone so you can hear but won't be heard, press FCN then press 1. mUTED appears on the Wireless Telephone display. Press FCN then 1 again to restore voice pickup. [. . . ] Setting User Preferences Standby menu When the Wireless Telephone is on but not in use, press and briefly hold FCN to display menus. Check with your system administrator for specific features supported by your Wireless Telephone. Volume Level The Wireless Telephone has two volume levels, low and high. Set the low volume level by pressing FCN until VOLUME displays. Use keypad to select a level from 1 (softest) to 8 (loudest). High volume is automatically set two levels higher than low volume. Vibrator Ring works only if your Wireless Telephone has the optional vibrating ringer. Select an option that describes the noise in your environment. Sets extension number associated with your Wireless Telephone. Turns off after ten seconds if no key is pressed. Select the language to be used with your Wireless Telephone. Changes or modifications not expressly approved by SpectraLink could void the user's authority to operate the equipment. â· It is recommended that standard acceptance procedures be followed prior to operating this equipment in proximity of life-support systems. â· To minimize risk of interference, pacemaker users should not carry the Wireless Telephone next to the pacemaker. Operation of the Wireless Telephone may produce an audible noise noticeable to hearing aid users. It is recommended that a hearing aid compatible headset be used by hearing aid users. â· This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Battery Packs About Battery Packs The Wireless Telephone will need to have its Battery Pack recharged periodically. The Nickel Metal Hydride (NiMH) rechargeable Wireless Telephone Battery Pack gives you four hours of talk time or 80 hours of stand-by time. [. . . ] Slide the Battery Pack toward the bottom of the Wireless Telephone until it stops, then lift up. To replace the Battery Pack, first properly align the top of the Battery Pack with the arrows on the label on the back of the Wireless Telephone. Gently press and slide the Battery Pack toward the top of the Wireless Telephone until it snaps into place. You should not have to force it against the Wireless Telephone. [. . . ]