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be divided up between DS0s that go to the NM-HDV for packetized voice (e.g. VoIP), and DS0s that are TDM switched to the “CO port” of the
VWIC for standard circuit switched voice connectivity.
In addition to support for Drop and Insert, the 2-port Drop and Insert VWICs have all the fuctionality of the 1- and 2-port Multiflex VWICs. Thus,
for example, in a Cisco 2600 they can serve as 2-port T1/E1 interfaces with integrated DSU/CSU when drop and insert is not configured.
Table 1. Multiflex VWIC Platform Support and Minimum Cisco IOS Release Requirements
VWIC-1MFT-
T1
VWIC-2MFT-
T1
VWIC-2MFT-
T1-D1
VWIC-1MFT-
E1
VWIC-2MFT-
E1
VWIC-2MFT-
E1-D1
VWIC-1MFT-
G703
VWIC-2MFT-
G703
12.0(5)XK 12.0(5)XK 12.0(5)XK 12.0(5)XK 12.0(5)XK 12.0(5)XK 12.1(1)T 12.1(1)T
C2600 NM-2W 12.0(7)XK 12.0(7)XK 12.0(7)XK 12.0(7)XK 12.0(7)XK 12.0(7)XK 12.1(1)T 12.1(1)T
C2600XM Chassis WIC
Slots
12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T
C2600XM NM-2W 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T
12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T
C2691 Ethernet NMs*
C2691 Fast Ethernet
NMs**
No No No No No No No No
C2691 Fast Ethernet
NMs**
12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T
C3620 and C3640
Ethernet NMs*
12.0(5)XK No 12.0(5)XK 12.0(5)XK No 12.0(5)XK 12.1(1)T No
C3620 and C3640 Fast
Ethernet NMs**
12.0(7)XK 12.0(7)XK 12.0(7)XK 12.0(7)XK 12.0(7)XK 12.0(7)XK 12.1(1)T 12.1(1)T
12.2(2)XT1 12.2(2)XT1 12.2(2)XT1 12.2(2)XT1 12.2(2)XT1 12.2(2)XT1 12.2(2)XT1 12.2(2)XT1
C3631 Ethernet NMs* No No No No No No No No
C3631 Fast Ethernet
NMs**
No No No No No No No No
C3660 Ethernet NMs* No No No No No No No No
C3660 Fast Ethernet
NMs**
12.0(7)XK 12.0(7)XK 12.0(7)XK 12.0(7)XK 12.0(7)XK 12.0(7)XK 12.1(1)T 12.1(1)T
C3700 Chassis WIC Slo
12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T
C3700 Ethernet NMs* No No No No No No No No
C3700 Fast Ethernet
NMs**
12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T 12.2(8)T
C2800 Chassis HWIC
Slots
12.3(8)T4 12.3(8)T4 12.3(8)T4 12.3(8)T4 12.3(8)T4 12.3(8)T4 12.3(8)T4 12.3(8)T4
