Cisco UC500 series Посібник з конфігурації - Сторінка 41
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no 80 permit udp any eq 5060 any
70 permit udp host 1.1.100.254 any eq 5060
80 permit udp host 1.1.100.254 eq 5060 any
end
Make sure the changes have taken affect by looking at the access-list again – you
d.
should see the IP address of SIP proxy / registrar in there.
UC520#show ip access-list 104
Extended IP access list 104
10 deny ip 10.1.10.0 0.0.0.3 any
20 deny ip 10.1.1.0 0.0.0.255 any
30 deny ip 192.168.10.0 0.0.0.255 any
40 permit icmp any host 1.1.100.1 echo-reply
50 permit icmp any host 1.1.100.1 time-exceeded
60 permit icmp any host 1.1.100.1 unreachable
70 permit udp host 1.1.100.254 any eq 5060
80 permit udp host 1.1.100.254 eq 5060 any
90 permit udp any any range 16384 32767
100 permit udp host 63.203.35.55 eq domain any
110 deny ip 10.0.0.0 0.255.255.255 any
120 deny ip 172.16.0.0 0.15.255.255 any
130 deny ip 192.168.0.0 0.0.255.255 any
140 deny ip 127.0.0.0 0.255.255.255 any
150 deny ip host 255.255.255.255 any
160 deny ip any any log
If you are using domain names instead of IP addresses, that will also work. Be aware that
there may be an outage if the DNS server is not reachable which means the UC500
firewall cannot resolve the domain name to an IP address. This will become the default
firewall configuration when using CCA 1.7 coming out in July 2008.
4.4.3 VOIP Codec used on SIP Trunk calls
By default the VoIP codecs configured on the UC500 for SIP trunking are G.711ulaw &
G.729 (in that order). Deciding which codec to use depends on the below factors
primarily:
a. DSP resources on the UC500 which is the limiting factor for lower bandwidth (hence
more complex) voice codecs
b. Bandwidth of IP access link from UC500 to SP which is the limiting factor for higher
bandwidth (hence less complex) voice codecs
4.4.3.1 Using G.711 as the codec on SIP trunk
UC500
Bandwidth
Model
per call
8/16 User
80 Kbps
(PVDM2-32)
24/32/48
80 Kbps
User
(PVDM2-64)
© 2008 Cisco Systems, Inc. All rights reserved.
MOH
Voice
port
(G711)
1
8/16
1
24/32/48
T.38
Transcoding HW
Fax
4
NA
8
NA
Conferencing
8 sessions (64
conferees)
8 sessions (64
conferees)