Notes and Restrictions
707
Appendix
16
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The IP address of a SIP server can be resolved using DHCP or DHCPv6 (The IP address of
the SIP server must be set to the option number "120" of a DHCP or a DHCPv6 server).
However, observe the following considerations:
- If an IP address is automatically resolved using DHCP in an IPv4 environment, set
[IPv4 - IP Address Resolution] to [DHCP] or [DHCP/AutoIP].
- Even when an IP address can be resolved automatically using DHCP or DHCPv6, port
number, login user name, login password, and server type cannot be resolved
automatically. Configure these items manually.
- If an IP address is resolved automatically, the same IP address is assigned to a proxy
server and a registrar server. If you use different IP addresses for a proxy server and a
registrar server, configure the IP addresses manually.
- If multiple IP addresses are resolved automatically, assign the first IP address to a
primary proxy/registrar server and the second to a secondary proxy/registrar server.
The third and subsequent addresses are not used.
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Only ToS (IP Precedence/DSCP) is supported as a QoS control method, and other QoS
controls including CoS are not supported. Set the priority of IP packet transmission in
[Prioritize IP Packets] to perform QoS control for the machine.
îš„ Recipients
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The communication between IP Fax (SIP) devices is available for our compatible
machines in a corporate intranet. (Able 1407 λ is not available.) For information on the
compatible machines, contact our Customer Support Center.
îš„ SIP Server
The following e-mail applications can transmit e-mails between the machine and a
computer:
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Cisco MCS 7800 series (Cisco Unified Communications Manager 6.0/6.1/7.1/8.0 is
installed) is validated as a SIP server available for the machine.
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The gateway may not work properly over an analog line depending on your environment.
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If you use a SIP server manufactured by Cisco Systems, Inc., only UDP can be used as
T.38 protocol.
z
SIP servers do not work on IPsec communications.
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SIP servers do not work in an IPv6 environment.
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SRST that works on routers such as CISCO2801 manufactured by Cisco Systems, Inc. is
not supported.
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Cisco Call Manager Express that works on routers such as CISCO2801 by Cisco Systems,
Inc. is not supported.
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If you use a SIP server manufactured by Cisco Systems, Inc., you can specify only IPv4
address character strings of the SIP server on the right side of @ in [SIP User ID (Sign-in
Name)]. If you specify IPv6 address character strings, FQDN character strings, and SIP
domain name character strings, the SIP server does not work.
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When a SIP server is configured as a SIP terminal of the machine on the server, if settings
other than specified are configured, the SIP server does not work as the SIP terminal.
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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.
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