Specifications

Phones and Voice Applications
63
Phones Supported on the AX
All phone sets are supported on the AX platform; there are no software restrictions on
provisioning sets on the AX. However, the AX platform does have limited Flash memory
available and not all set loads can be stored in the AX Flash. If the software load for a set cannot
be installed in the AX Flash dues to space constraints, then the Administrator will need to ensure
that the DHCP server is configured with the correct options so that the set can download its
software from an external TFTP server.
Micro Firewall
Several MiVoice IP Phones support an integral Micro Firewall as of MCD Release 5.0, the
following sets support the Micro Firewall:
The Micro Firewall blocks all undesirable packets (e.g. ARP packet not for the phone).
It also rate limits some of the other packets (e.g. ICMP PING packet) to a rate that is either
expected by the phone or is at a desirable rate. The following packets are rate limited by the set:
CX II 8 16 50 72
8 4 100 36
8 0 150 24
• 5212
• 5215 Dual Mode
• 5220 Dual Mode
• 5224
• 5304
• 5312
• 5320
• 5320e
• 5324
• 5330
• 5330e
• 5340
• 5340e
• 5360
• 5505
• 5540
• UC360
Table 24: Packet Rates
Packet type Rate (packet/second) Burst handling (packets)
CDP, STP, LLDP 5 25
DNS 30 20
ARP, ICMP 5 50
RTP (per stream) 110 0
Table 23: Impact of Shared Line Appearances and Traffic Rates on
Number of 5560 IPT Supported
Controller Type
Number of sets
(users)
Shared Line
Appearances
CPH per user
Equivalent Call
hold time (sec)