Cisco Cisco 2600 3600 Series 1-Port 30-Channel J1 Voice Fax Network Module Information Guide
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Q&A
CISCO MULTIFLEX TRUNK DEDICATED ECHO
CANCELLATION MODULES
CANCELLATION MODULES
GENERAL
Q.
What new Cisco
®
modules are being announced?
A.
Two Cisco Multiflex Trunk Dedicated Echo Cancellation (MFT ECAN) Modules are being announced, as described in Table 1.
Table 1.
New Cisco MFT Dedicated ECAN Modules
Product Number
Description
EC-MFT-32
32-Channel Multiflex Trunk Dedicated ECAN Module
EC-MFT-64
64-Channel Multiflex Trunk Dedicated ECAN Module
Q.
What voice/WAN interface cards (VWICs) contain a slot for the modules? What modules are generally used for each card?
A.
The Cisco Second-generation 1- and 2-port T1/E1 Multiflex Trunk VWIC2s (MFT VWIC2s) contain slots for the dedicated ECAN modules.
The MFT VWIC2s and the recommended ECAN modules are listed in Table 2.
Table 2.
Recommended ECAN Modules
Product Number
Product Description
Recommended ECAN Module
VWIC2-1MFT-T1/E1
1-Port T1/E1 Multiflex Trunk Voice/WAN Interface Card
EC-MFT-32
VWIC2-2MFT-T1/E1
2-Port T1/E1 Multiflex Trunk Voice/WAN Interface Card
EC-MFT-64
VWIC2-1MFT-G703
1-Port G.703 Multiflex Trunk Voice/WAN Interface Card
EC-MFT-32
VWIC2-2MFT-G703
2-Port G.703 Multiflex Trunk Voice/WAN Interface Card
EC-MFT-64
Note:
•
It is possible to install a Cisco 32-Channel MFT Dedicated ECAN Module on a 2-port MFT VWIC2. However, not all voice channels will
be able to concurrently use the echo cancellation feature.
•
It is possible to install a Cisco 64-Channel MFT Dedicated ECAN Module on a 1-port MFT VWIC2. However, the extra echo cancellation
channels will not be used. The only ports on the MFT VWIC2 that can use the module resources are the ports directly attached to the module.
Q.
What echo cancellation solution is recommended for demanding network environments where a 64 ms echo canceller coverage may not be
sufficient?
A.
The ECAN modules provide a dedicated hardware resource that runs the Cisco Enhanced ITU-T G.168 ECAN feature with a tail length of up
to 128 ms with other optional settings set through the CLI. These optional daughter cards attach to the second-generation T1/E1 MFT VWIC2s to
provide robust echo cancellation performance for demanding network environments.