Follow the company's policy

Brief urgent or emergency calls are permitted

Be aware of the laws about cell phones

Don't use in an area where you can interrupt people

It is placed when it is necessary to talk with persons at different locations at one time

Set up in advance with a conference operator

The procedures

A geographical region that has same standard time

Avoid of calling when the time before or after business hours.

Avoid speaking in a monotonous voice.

Pace is the rate/speed of the speech

Adjust your pace to fit the need of those with who you are communicating

Do not shout or speak too softly

Speak directly into the telephone receiver or mouthpiece.

Pronounce words perfectly

If unsure about the pronunciation, look it up in the dictionary.

Avoid complicated phrases long words or long sentences