...
In Communicator GO app, you see a notification if you receive an SMS message.
...
Problems with SMS
You may receive and error indicating that you cannot send the SMS due exceeding the maximum number of messages.
...
A common mistake is to inadvertently use a UCS-2 character. GSM-7 isn’t a supported character set in many text editors, which may replace GSM-7 compatible characters with characters outside of GSM-7. For example, if your text editor changes " to “ — a ‘curly’ or ‘smart’ quote mark — you will have a UCS-2 character in your message and that will reduce the character limit from 160 to 70.
This will mainly happen if you cut an paste from Word or some other editor that “replaces” characters with other characters.
...
Notice in Example 1 that as you type the numbers at the bottom left tell you the remaining number of characters. Should the message go beyond the default 160 characters, the message will be broken into multiple messages indicated by the <number of characters remaining>/<number of messages> (see first four screen shots)
...