Configuring the Catalyst 6000
Voice T1 and Services Module
To illustrate the difference between the Catalyst 4000 module and the
Catalyst 6000, we will describe the steps to configure the Voice T1/E1
module, which is done on a port-by-port basis. The port can be configured
for PSTN connectivity, transcoding, or conferencing. The
transcoding port shows up as “MTP” while the conference port shows
up as “Conf Bridge.”
First, let’s look at a sample configuration of a Catalyst 6000 with an
8-port T1 Voice and Service module. The following command shows the
status of the module located in slot 7 of the Catalyst 6000.
Cat6K> (enable) show port 7
Port Name Status Vlan Duplex Speed Type
---- ----------------- ---------- -------- ------ ----- -----
7/1 notconnect 1 full 1.544 T1
7/2 notconnect 1 full 1.544 T1
7/3 connected 1 full 1.544 T1
7/4 connected 1 full 1.544 T1
Configuring and Implementing…
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DSPs Explained • Chapter 6 179
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7/5 connected 1 full 1.544 T1
7/6 connected 1 full 1.544 T1
7/7 enabled 1 full - Conf Bridge
7/8 enabled 1 full - MTP
Port DHCP MAC-Address IP-Address Subnet-Mask
------ ------- ------------------ --------------- ------------
7/1 enable 00-10-7b-00-12-08 10.6.15.165 255.255.255.0
7/2 enable 00-10-7b-00-12-09 10.6.15.166 255.255.255.0
7/3 enable 00-10-7b-00-12-0a 10.6.15.167 255.255.255.0
7/4 enable 00-10-7b-00-12-0b 10.6.15.168 255.255.255.0
7/5 enable 00-10-7b-00-12-0c 10.6.15.169 255.255.255.0
7/6 enable 00-10-7b-00-12-0d 10.6.15.170 255.255.255.0
7/7 enable 00-10-7b-00-12-0e 10.6.15.171 255.255.255.0
7/8 enable 00-10-7b-00-12-0f 10.6.15.172 255.255.255.0
Port CallManager(s) DHCP-Server TFTP-Server Gateway
------ ---------------- -------------- --------------- ---------
7/1 10.6.15.155 10.6.15.155 10.6.15.155 -
7/2 10.6.15.155 10.6.15.155 10.6.15.155 -
7/3 10.6.15.155 10.6.15.155 10.6.15.155 -
7/4 10.6.15.155 10.6.15.155 10.6.15.155 -
7/5 10.6.15.155 10.6.15.155 10.6.15.155 -
7/6 10.6.15.155 10.6.15.155 10.6.15.155 -
7/7 10.6.15.155 10.6.15.155 10.6.15.155 -
7/8 10.6.15.155 10.6.15.155 10.6.15.155 -
.
.
.
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180 Chapter 6 • DSPs Explained
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Port CallManagerState DSP-Type
-------- ----------------- --------
7/1 registered C549
7/2 registered C549
7/3 registered C549
7/4 registered C549
7/5 registered C549
7/6 registered C549
7/7 registered C549
7/8 registered C549
Cat6K> (enable)
Similarly, the Catalyst 4000 the 6000 must be set up in CallManager
Administration as a Conference Bridge.
Again, for the detailed steps refer to the following link:
www.cisco.com/univered/cc/td/doc/product/voice/c_callmg/3_1/sys_ad/
adm_sys/ccmcfg/b04cnbrg.htm.
To verify the configuration of the Catalyst 6000 and show active
calls enter the following command:
Cat6K> show port voice active
Port Type Total Conference-ID/ Party-ID IP-Address
Transcoding-ID
----- ----------- ------- --------------- --------- -----------
3/1 call 1 - - 199.22.25.254
3/2 call 1 - - 178.205.25.54
4/5 call 3 - - 165.34.234.111
172.32.34.12
198.96.23.111
3/8 conferencing 2 1 1 200.200.200.241
2 173.23.13.42
3 198.97.123.98
5 182.34.54.26
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DSPs Explained • Chapter 6 181
NM-HDV Modules
One of the benefits of the NM-HDV module is toll bypass and PBX leased line
replacement, which reduces toll charges by local and long distance carriers and
eliminates monthly leased lines charges for PBX interconnections. Another is
acting as a PSTN gateway for Cisco CallManager and IP phones. As an enterprise
grows, this is a great way for VoIP to be seen as a low-cost solution to the
extraordinary expense of long distance toll charges.
The High Density Voice Network Module (NM-HDV) family supports the
Multi-flex Voice/WAN (VWIC) and VIC cards.The NM-HDV module is also
known as the Digital T1/E1 Packet Voice Trunk Network Module.The platforms
supported by the NM-HDV are VG-200, 2600, and 3600 series routers.The NMHDV
supports connections to both private branch exchanges (PBXs) and public
switched telephone networks (PSTN).A single module can scale up to 60 voice
channels.These 60 voice channels are based on medium-complexity voice compression
CODECs. Each NM-HDV module contains at least one 12-channel
Packet Voice DSP Module (PVDM-12) with a maximum of five PVDM-12s possible.
The PVDM-12 has three TI 549 DSPs, and supports 12 medium-complexity
and 6 high-complexity voice calls. Up to 6 packet voice trunk modules can be
configured in a Cisco 3660 router supporting 288 voice channels.Table 6.4 lists
all the available configuration options for the Digital T1/E1 Packet Voice Trunk
modules.
Table 6.4 Digital T1/E1 Packet Voice Trunk Module Family
Part Number Description
NM-HDV-1E1-12 High Density Voice Network Module, with 1
VWIC-1MFT-E1 and 1 PVDM-12
NM-HDV-1E1-30 High Density Voice Network Module, with 1
VWIC-1MFT-E1 and 3 PVDM-12
NM-HDV-1E1-30E High Density Voice Network Module, with 1
VWIC-1MFT-E1 and 5 PVDM-12
NM-HDV-2E1-60 High Density Voice Network Module, with 1
VWIC-2MFT-E1-DI and 5 PVDM-12
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3/2 call 1 - - 178.205.25.54
3/8 transcoding 1 1 1 200.200.200.241
2 183.32.43.3