Notes and Restrictions
709
Appendix
16
z
For a SIP server manufactured by Cisco Systems, Inc., an address retention period is fixed
to 120 seconds. This value cannot be changed even if Timer Register Expires value is
changed.
VoIP Gateway
z
Cisco ISR 2800 series (with IOS 12.4) is validated as a VoIP gateway available for the
machine.
z
The gateway may not work properly over an analog line depending on your environment.
z
If you use a VoIP gateway manufactured by Cisco Systems, Inc., only UDP can be used as
T.38 protocol.
z
VoIP gateways do not work on IPsec communication.
z
VoIP gateways do not work in an IPv6 environment.
z
If settings other than specified by Fuji Xerox are configured for a dial peer or a voice port
on a VoIP gateway, the VoIP gateway does not work.
z
If a part of transferred data is lost on a network, a part of image may be missing or be
getting stacked. To avoid these, the ECM mode is effective. The machine can always use
the ECM mode, however, you cannot use the mode depending on the VoIP gateway
settings. Consult your network administrator whether the ECM mode is available.
NAT/NAPT
z
Communication protocols that transmit UPnP, TURN, STUN, ICE, and UDP hole punching
in SIP communications are not supported. IP Fax (SIP) does not work in an environment
that uses NAT/NAPT devices including ALG.
Notes and Restrictions when Connecting with Internet Service Provider
This section describes notes and restrictions to observe when using features that transmit e-
mails or Internet faxes using an Internet service provider (ISP).
The features related to e-mail are as follows:
z
E-mail
z
E-mail Notification Service
z
Print E-mail
z
Internet Fax
îš„ Notes and Restrictions on Accessing ISP
Observe the following notes and restrictions when connecting the machine to ISP:
z
Dial-up connection is not supported. Continuous connection is required.
z
Connect the machine in an environment using IP masquerade. Assigning a global IP
address to the machine is not supported.
z
Be sure to assign an exclusive e-mail account to the machine for POP reception. Sharing
an e-mail account with other users may cause troubles.
z
Be sure to set size limitation for sending e-mail. Although the applicable e-mail size may
vary depending on the ISP used, we recommend that you set a small value.
z
Although continuous connection other than ADSL or cable connection is also supported,
the reception of image data significantly burdens the machine.
z
SMTP reception is not supported. This machine supports only POP reception.
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