Cannot Send Faxes to a Specific Recipient

If the recipient machine does not pick up your call within 50 seconds after the printer has finished dialing, the call ends with an error. Dial using a connected telephone to check how long it takes before you hear a fax tone. If it takes more than 50 seconds, add pauses after the fax number to send the fax. The is used to enter pauses. A hyphen is entered as the pause mark. One pause is about three seconds. Add multiple pauses as needed.

Select Settings > Contacts Manager > Edit, and then select the recipient from the contact list. Follow the on-screen instructions, and then set Communication Mode to Slow(9,600bps).