Cisco Cisco IOS Software Release 12.2(2)XB
AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30 on the Cisco 2600 Series and Cisco 3660
Feature Overview
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Cisco IOS Release 12.2(2)XB
This document describes configurations for the AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30
on the Cisco 2600 series and the Cisco 3660. It includes the following sections:
on the Cisco 2600 series and the Cisco 3660. It includes the following sections:
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Feature Overview
Three types of AIM provide Cisco 2600 series and Cisco 3660 routers with components that provide the
following ATM and voice processing services:
following ATM and voice processing services:
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Segmentation and reassembly (SAR) of packets for ATM transport over a wide-area network
(WAN), utilizing ATM Adaptation Layer 2 (AAL2) and AAL5 encapsulation and providing ATM
WAN uplinks on up to four T1/E1 links
(WAN), utilizing ATM Adaptation Layer 2 (AAL2) and AAL5 encapsulation and providing ATM
WAN uplinks on up to four T1/E1 links
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Digital signal processing (DSP) for voice conversion, providing termination and processing of up to
30 voice channels per AIM
30 voice channels per AIM
The Cisco 2600 series has one internal slot for an AIM, and the Cisco 3660 has two. The three types of
AIM are as follows:
AIM are as follows:
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AIM-ATM—A High-Performance ATM AIM, which enables voice and data traffic to be carried
over ATM networks using AAL2 and AAL5 encapsulation, when installed in Cisco 2600 series or
Cisco 3660 routers. If used in conjunction with a T1/E1 multiflex trunk voice/WAN interface card
(VWIC-MFT) for circuit-mode data and frame-mode data over ATM infrastructures, it supports up
to four T1 or E1 WAN interfaces. These interfaces may be four independent links or four inverse
multiplexing over ATM (IMA) groups. When using the voice DSP capability of a digital T1/E1
packet voice trunk network module (NM-HDV) and a T1/E1 multiflex trunk VWIC, it supports as
many as 30 channels of compressed voice over a T1/E1 trunk using AAL2 or AAL5. Analog Voice
over ATM (VoATM) is enabled with a voice/fax network module (NM-1V or NM-2V) and a voice
interface card, which support as many as four analog voice calls using AAL5. All voice interface
cards are supported: FXS, FXO, Analog-DID, E&M, and BRI.
over ATM networks using AAL2 and AAL5 encapsulation, when installed in Cisco 2600 series or
Cisco 3660 routers. If used in conjunction with a T1/E1 multiflex trunk voice/WAN interface card
(VWIC-MFT) for circuit-mode data and frame-mode data over ATM infrastructures, it supports up
to four T1 or E1 WAN interfaces. These interfaces may be four independent links or four inverse
multiplexing over ATM (IMA) groups. When using the voice DSP capability of a digital T1/E1
packet voice trunk network module (NM-HDV) and a T1/E1 multiflex trunk VWIC, it supports as
many as 30 channels of compressed voice over a T1/E1 trunk using AAL2 or AAL5. Analog Voice
over ATM (VoATM) is enabled with a voice/fax network module (NM-1V or NM-2V) and a voice
interface card, which support as many as four analog voice calls using AAL5. All voice interface
cards are supported: FXS, FXO, Analog-DID, E&M, and BRI.
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AIM-VOICE-30—An advanced integration module capable of supporting up to 30 voice or fax
channels when used in a Cisco 2600 series or Cisco 3660 router with one of the T1/E1 voice/WAN
interface cards (such as VWIC-1T1). This AIM includes powerful DSPs that are used for a number
of voice processing tasks such as voice compression and decompression, voice activity detection or
silence suppression, and private branch exchange (PBX) or public switched telephone network
(PSTN) signaling protocols. By using the AIM-VOICE-30 in a Cisco 2600 series router, customers
can support Voice over IP (VoIP) or Voice over Frame Relay (VoFR) while leaving the router’s
network module slot open for other functions such as asynchronous or synchronous serial
concentration. When used in combination with one of the various ATM network modules, VoATM
or VoIP over ATM can be provisioned using AAL5 and Voice over AAL2 (VoAAL2).
channels when used in a Cisco 2600 series or Cisco 3660 router with one of the T1/E1 voice/WAN
interface cards (such as VWIC-1T1). This AIM includes powerful DSPs that are used for a number
of voice processing tasks such as voice compression and decompression, voice activity detection or
silence suppression, and private branch exchange (PBX) or public switched telephone network
(PSTN) signaling protocols. By using the AIM-VOICE-30 in a Cisco 2600 series router, customers
can support Voice over IP (VoIP) or Voice over Frame Relay (VoFR) while leaving the router’s
network module slot open for other functions such as asynchronous or synchronous serial
concentration. When used in combination with one of the various ATM network modules, VoATM
or VoIP over ATM can be provisioned using AAL5 and Voice over AAL2 (VoAAL2).