Cisco Cisco NM-1V One Voice Fax Interface Card Slot Network Module Guía De Información
For Cisco Internal Use Only
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Q.
Which components of the Cisco High-Density Extension Module support DID?
A.
Support for DID is available on the Cisco High-Density Extension Module baseboard only. Individual ports on the Cisco High-Density
Extension Module baseboard can be configured for FXS or DID signaling. Adjacent ports must share the same configuration; paired ports are:
0 and 1; 2 and 3; 4 and 5; 6 and 7. The 8-port FXS expansion module (part number EM-HDA-8FXS) does not support DID.
DIGITAL SIGNAL PROCESSOR (DSP) RESOURCES FOR THE CISCO HIGH-DENSITY EXTENSION MODULE
Q.
How are DSP resources provided for the Cisco High-Density Extension Module?
A.
Packet voice DSP modules (PVDM2s) are used in combination with the Cisco High-Density Extension Module baseboard and its
expansion modules. PVDM2s provide support for multiple voice codecs, fax, conferencing and transcoding services. PVDM2s are purchased
separately and installed in the DSP module slots located inside the router chassis. Initial orders for a Cisco 2821, Cisco 2851, Cisco 3825, or
Cisco 3845 router that include a Cisco High-Density Extension Module should also include an appropriate number of PVDM2s to be installed
in the router chassis.
Q.
Where can I find more information about PVDM2s?
A.
Refer to this data sheet: High-Density Packet Voice Digital Signal Processor Module for Cisco IP Communications Solution which can be
found at
http://www.cisco.com/en/US/products/hw/modules/ps3115/products_data_sheet0900aecd8016e845.html
Q.
Which type and how many PVDM2s are required to provide DSP resources for the following Cisco High-Density Extension Module
configuration: G.729A medium complexity codec for all channels; EVM-HD-8FXS/DID + EM-4BRI-NT/TE + EM-HDA-8FXS (24 channels
total)
A.
Select one PVDM2-48 to provide DSP resources for this Cisco High-Density Extension Module configuration. Table 4 compares the
channel capacity of PVDM2 modules and the number of channels each supports for different codec complexity types.
Table 4.
Channel Capacity of PVDM2 Modules
PVDM Module
Description
# G.711 Channels
# Medium Complexity
Channels
# High Complexity
Channels
PVDM2-8
8-Channel Packet Fax/Voice DSP Module
8
4
4
PVDM2-16
16-Channel Fax/Voice DSP Module
16
8
6
PVDM2-32
32-Channel Fax/Voice DSP Module
32
16
12
PVDM2-48
48-Channel Fax/Voice DSP Module
48
24
18
PVDM2-64
64-Channel Fax/Voice DSP Module
64
32
24
Q.
Which type and how many PVDM2s are required to provide DSP resources for the following Cisco High-Density Extension Module
configuration: G.711 codec for all channels; EVM-HD-8FXS/DID + EM-HDA-8FXS + EM-HDA-8FXS (24 channels total)
A.
Select one PVDM2-16 plus one PVDM2-8 to provide DSP resources for this High-Density Extension Module configuration.
CISCO CALLMANAGER AND CISCO CALLMANAGER EXPRESS RELEASE SUPPORT
Q.
What is the minimum Cisco CallManager software release that interoperates with the High-Density Extension Module?
A.
Cisco CallManager Release 3.3(5), Release 4.1 and Release 4.0(2) include support for the Cisco High-Density Extension Module.
Q.
What is the minimum Cisco CallManager Express release that interoperates with the Cisco High-Density Extension Module?
A.
Cisco CallManager Express (CME) Release 3.1