Canon 700 Series Facsimile Manual page 332

Cannot relay a document from another fax machine.
Cause 1 The other fax machine does not support ITU-T subaddress/password
transactions.
Remedy 1 If the other party's fax machine does not support ITU-T subaddress/password
transactions, you cannot relay their documents.
Remedy 2 Make sure both the originator machine and your machine as the relay unit have
registered the same ITU-T subaddress/password. (See "Setting Your Machine
as a Relay Unit," on p. 6-3.)
Cause 2 Your machine is not set up to relay documents.
Remedy Make sure your machine is set up properly to relay documents. The relay feature
must be turned 'ON'. (See "Setting Your Machine as a Relay Unit," on p. 6-3.)
Cause 3 The originator's ITU-T subaddress/password are not correct.
Remedy 1 The originator must send you the document with the correct ITU-T
subaddress/password. The ITU-T password setting is optional. However, if you set
a password for your relay TX group, then the originator must send the document
with a matching password. Otherwise, your machine will not receive the document
for relay broadcasting. (See "Sending a Document to a Relay Unit for Relay
Broadcasting," on p. 6-11.)
Remedy 2 Check the relay TX group and determine if it has been set to check the identity of
the originator before it receives the document for a relay broadcast. (See
"Sending a Document to a Relay Unit for Relay Broadcasting," on p. 6-11.)
The other party cannot poll and receive your document.
Cause The other party's fax machine does not support ITU-T subaddress/password
sending.
Remedy If the other party's fax machine does not support ITU-T subaddresses/
passwords, designate a polling box #00 for the other party to poll, and scan the
document without a subaddress/password. If the other party's machine is a
Canon machine and can set a polling ID, ask them to set the polling ID to '255'
decimal or '1111 1111' binary. (See "Setting Up Polling Sending," on p. 8-14.)
When Trouble Occurs 13-17
13