Cisco® multiservice access routers and integrated services routers offer a wide variety of WAN connectivity modules to accommodate the range of application needs in customer networks. The new Cisco 1-Port G.SHDSL WAN Interface Card (part number WIC-1SHDSL-V3) offers G.SHDSL-based WAN connectivity for modular routers deployed in small to medium-sized branch offices (Figure 1).

OVERVIEW

Figure 1. Cisco 1-Port G.SHDSL WAN Interface Card (part number WIC-1SHDSL-V3)

FEATURE SUMMARY

• Offers symmetrical WAN speeds up to 2.3 Mbps over a single copper pair and up to 4.6 Mbps over two copper pairs

• Based on ITU Recommendation G.991.2 (accepted worldwide)

• Supports Dying Gasp; uses power status bit (section 7.1.2.5.3 of G.991.2) for signaling

• Supports Wetting Current (Section A.5.3.3 of G.991.2)

• Supports G.SHDSL Annex A (U.S. signaling) and Annex B (European signaling)

• Multiple G.SHDSL WICs configurable per Cisco 1800, 2800, and 3800 and Cisco 1700, 2600XM, and 3700 router chassis

• Offers toll-quality voice over data with ATM Adaptation Layer 2 (AAL2) on Cisco 2800, 3800, 2600, and 3700 series routers; and AAL5 and voice over IP (VoIP) on the Cisco 1800, 2800, 3800, 1700, 2600, and 3700 series routers

• Supports extensive ATM classes of service (CoS) and IP quality of service (QoS)

• Operates back to back or with DSL access multiplexer (DSLAM)

• Sustains up to 23 virtual circuits per WIC

SYSTEM REQUIREMENTS

• The WIC is supported on all modular Cisco integrated services routers-the Cisco 1841, 2801, 2811, 2821, 2851, 3825, and 3845. It is also supported on the older multiservice routers-the Cisco 1721, 1751, 1760, 2600XM, 2691, 3725, and 3745 routers.

• The new WIC is supported on these access routers using the Cisco IOS IP Base feature set and up. For the Cisco 1700 Series, the minimum Cisco IOS Software feature set required to support the card is IP/ADSL or IP Base.

• The routers listed previously need to run Cisco IOS Software Release 12.4(3) Mainline and above or 12.4(2)XA to support the new WIC. The interface is also supported in Cisco IOS Software Release 12.4(3rd)T and above.

• The system requires no additional flash or DRAM memory other than the specified minimum memory for the Cisco IOS Software releases listed.

• No slot placement restrictions are placed for the new interface card on any of the platforms.

FEATURES AND BENEFITS SUMMARY

Table 1. G.SHDSL WICs with Cisco Access Routers Features and Benefits

Feature	Benefits
Flexibility
Cisco IOS Software Support	· Provides the industry's most robust, scalable, and feature-rich internetworking software support using the accepted standard networking software for the Internet and private WANs · Constitutes part of the Cisco Systems® end-to-end network solution, including multiprotocol routing (IP, Internetwork Packet Exchange [IPX, AppleTalk, and IBM/Systems Network Architecture [SNA]) and bridging
Integrated Voice and Data Networking
Voice and Data Integration	· Reduces long-distance toll charges by allowing the data network to carry interoffice voice and fax traffic · Works with existing handsets, key units, and private branch exchanges (PBXs), eliminating the need for a costly phone-equipment upgrade · Supports critical IP QoS features in Cisco IOS Software · Provides traffic management with ATM CoS
Digital Voice Interfaces	· Provides toll-quality, award-winning derived VoIP; software-support VoIP/AAL5 and voice over ATM (VoATM)/AAL2 (Cisco 2800, 3800, 2600, and 3700 only); and AAL5
Analog Voice Interfaces	· Supports analog voice for VoATM/VoIP over AAL5
Standards-Based H.323 Signaling	· Allows an ecosystem of third-party vendors to develop applications for a complete solution; allows rapid low-cost deployment of VoIP
Digital Signal Processors (DSPs) and Voice-Compression Codecs G.711, G.729a, G.723.1, and G.726	· Provide hardware-based compressed voice to fit significantly more voice lines over a single copper pair without breaking the end-to-end delay budget
Sub-Cell Multiplexing (AAL2) (Cisco 2800, 3800, 2600, and 3700 only)	· Helps enable multiple voice channels to share an ATM cell, leading to efficient bandwidth utilization
Modular Architecture
Variety of WICs, Voice Interface Cards (VICs), and Network Modules	· Offers added flexibility and investment protection · Provides easy migration from Frame Relay or asymmetric DSL (ADSL) to SHDSL
Multiple Platform Support	· Supports G.SHDSL WICs across a variety of Cisco platforms, including the Cisco 1841, 2800, 3800, 1700, 2600, 2600XM, 2691, and 3700 series routers · Reduces cost of maintaining inventory, and allows reuse of modules
Security with VPN and Integrated Firewall
Hardware-Based Encryption	· Helps enable creation of VPNs by providing industry-standard data privacy, integrity, and authenticity as data traverses the Internet or a shared public network · Offers hardware-based VPN encryption through onboard processor or Advanced Integration Module (AIM) VPN card
Triple Digital Encryption Standard (3DES) IP Security (IPSec), Advanced Encryption Standard (AES), Generic Routing Encapsulation (GRE), Layer 2 Tunneling Protocol (L2TP), and Layer 2 Forwarding (L2F)	· Offers choice of standards-based tunneling methods to create VPNs for IP and non-IP traffic · Offers full interoperability with public certificate authorities and IPSec standards-based products · Constitutes part of the scalable Cisco end-to-end VPN solution portfolio
Cisco IOS Firewall	· Cisco IOS Firewall includes context-based access control for dynamic firewall filtering, denial-of-service (DoS) detection and prevention, Java blocking, and real-time alerts · Allows internal users to access the Internet with secure, per-application-based, dynamic access control while preventing unauthorized Internet users from accessing the internal LAN
Network Address Translation and Port Address Translation (NAT/PAT)	· Hides internal IP addresses from external networks · Prevents certain DoS attacks from outside networks · Allows multiple users access with a single IP address
Password Authentication Protocol/Challenge Handshake Authentication Protocol (PAP/CHAP), Microsoft CHAP (MS-CHAP), RADIUS, and TACACS+	· Supports all leading user identity verification schemes
Route and Router Authentication	· Accepts routing table updates from only known routers, helping ensure that no corrupt information from unknown sources is received
Internet Key Exchange (IKE) and X.509v3 Digital Certification	· Helps ensure proper identity and authenticity of devices and data · Supports Certificate Enrollment Protocol (CEP) with certification authorities (CAs) such as Verisign and Entrust
ATM Features
ATM Traffic Unspecified Bit Rate (UBR), Non-Real-Time Variable Bit Rate (VBR-nrt), Real-Time Variable Bit Rate (VBR-rt), and Constant Bit Rate (CBR) with Traffic Shaping	· Helps ensure QoS guarantees for real-time traffic, with ability to send traffic over the appropriate virtual circuit to provide ATM-level shaping and ensure that no head-of-line blocking occurs between circuits of different or equal traffic classes
Up to 23 Virtual Circuits per WIC	· Helps enable more sessions at a time; is relevant for small and medium-sized businesses and small branch offices with 50 to 200 employees · Supports per-virtual circuit queuing in Cisco IOS Software releases 12.2(2)XK, 12.2(4)XL, 12.2(13)T, 12.2(8)YN, and subsequent releases (per-virtual circuit queuing not supported in Cisco IOS Software releases 12.2(4)T, 12.2(8)T1, or 12.2(11)T)
Point-to-Point Protocol (PPP) over ATM	· Helps ensure compatibility with existing network
F5 OAM Continuity Check (F5OAMCC) and Loopback	· Supported in Cisco IOS Software releases 12.2(4)XL, 12.2(11)T2, 12.2(8)YN, and subsequent releases
Interim Local Management Interface (ILMI)	· Supported in Cisco IOS Software releases 12.2(4)XL, 12.2(13)T, 12.2(8)YN, and subsequent releases
PPP over Ethernet Client	· Meets service provider requirements and eliminates the need for additional network software on LAN-connected client PCs
RFC 2684 Routing	· Supports RFC 2684 Routing
ATM Oversubscription for DSL	· Allows bandwidth oversubscription to be configured for VBR and UBR+ service classes · Supported in Cisco IOS Software releases starting with 12.4(2)XA; also available in Release 12.4(3rd)T and above
Multiqueue	· Multiqueue for DSL lines helps enable a priority and a regular (nonpriority) queue for traffic streams · Supported in Cisco IOS Software releases starting with 12.4(2)XA; also available in Release 12.4(3rd)T and above
Device Integration
Integrated Router, Voice Gateway, Firewall, and VPN in a Single Device	· Reduces costs and simplifies management

IP QUALITY OF SERVICE

Table 2. Supported IP QoS Features

INTEROPERABILITY

Table 3. DSLAM Interoperability

Table 4. Primary Differences Among 1-Port G.SHDSL WAN Interface Cards

PLATFORM SUPPORT

Table 5. Platform Support Details

Table 6. Maximum Number of G.SHDSL WICs per Platform

SOFTWARE REQUIREMENTS

Table 7. Minimum Cisco IOS Software Release Required for New WICs

Table 8. Product Number and Ordering Information

Table 9. Hardware Specifications

SAFETY, EMC, TELECOM, NETWORK HOMOLOGATION, POWER, ENVIRONMENTAL REQUIREMENTS, AND REGULATORY APPROVALS

• For Cisco 1721 and 1760:

• For Cisco 1800 Series (modular):

• For Cisco 2600XM and 2691:

• For Cisco 2800 Series:

• For Cisco 3700 Series:

• For Cisco 3800 Series:

COUNTRY SUPPORT

Figure 1. DS-3 and E3 ATM Network Modules

• ATM Classes of Service support for: Unspecified Bit Rate (UBR), UBR+, Variable Bit Rate real-time (VBR-rt), Variable Bit Rate non-real time (VBR-nrt), Constant Bit Rate (CBR), and Available Bit Rate (ABR)

• ATM UNI 3.0, 4.0 Traffic Management support

• RFC 1483 and RFC 1577 support

• 1024 maximum simultaneous Virtual Connections (VCs)

• 8 bits of VPI (VPI range 0-256), 10 bits of VCI (VCI range 0-1024)

• Permanent Virtual Circuits (PVCs) and Switched Virtual Circuits (SVCs)

• PLCP and HEC cell delineation support

• Operations and Management (F5 OAM) cell support

• LANE 2.0 support

• ILMI 1.0 support

• IETF PPP over ATM support

• IP-to-ATM Class-of-Service (CoS) Mapping Feature

• Multiprotocol Label Swapping (MPLS) VPN support

• MPOA Client and Server

• Next Hop Routing Protocol (NHRP)

• On-line Insertion and Removal (OIR) on 3660

• Permanent Virtual Path (PVPs) support

• FRF.5/8 Interworking

• ITU-T G.703 Compliant

Table 1. Cisco IOS Support and Orderability Matrix for DS3/E3 ATM Network Modules

ADVANCED TRAFFIC MANAGEMENT

Table 2. ATM Service Class Definitions

PER-VC TRAFFIC SHAPING

Table 3. ATM Class of Service Traffic Shaping Parameters

Table 4. Traffic Shaping Granularity

Note: Although configuration to line rate is allowed, line rate is only reached with large packet sizes.

EXTENDED VIRTUAL CONNECTIONS CAPABILITIES

Table 5. Interface Specifications

Note: The DS-3 version provides adaptive equalization for 0-450 ft. of cable and provides loopback capability. The E3 version provides adaptive equalization for 0-1250 ft. of cable and also provides loopback capabilities. The DS-3 version also has the ability to support line build-out for cable lengths of less than 50 ft. or greater than 50 ft., as required.

Table 6. LED Indicators

SYSTEM REQUIREMENTS

• Maximum of one DS3 or E3 ATM network module supported on Cisco 2600, 3620, and 3640, and two on the 3660

• Operates in conjunction with all currently available Cisco 3600 network modules and WAN interface cards (WICs)

• No slot placement restrictions

NETWORK MANAGEMENT

• Synchronous Optical Network (SONET) MIB

• MIB II

• AToM MIB (FRC 1695)

• ILMI MIB

• CISCO-BUS MIB

• CISCO-LECS-MIB

• CISCO-LES-MIB

• LAN Emulation (LANE) MIB

• Cisco-AAL5-MIB

• DS3/E3 CISCO-ATM-IF-PHYS-MIB

PRODUCT COMPLIANCE STANDARDS

Environmental

Table 7. DS3/E3 ATM Physical Specifications

Safety Regulatory Approvals

• UL 1950 3rd edition/CSA C22.2, no. 950

• C1950 (Canada)

• AS/NZS 3260 (Australia/New Zealand)

• EN60950 (Europe)

• IEC 950 (National Deviations)

Emission Regulatory Approvals

• FCC Part 15J Class A (US/Canada)

• VCCI Class 2 (Japan)

• AS/NZS 3548 (Australia/New Zealand)

• EN55022 (CISPR 22) Class B (Europe)

Digital J1 Packet Voice
Network Module

The Digital J1 Packet Voice Network Module provides a flexible and scalable J1 voice and fax solution for the Cisco 2600, 2600XM, 3600 and 3700 series multiservice Modular Access routers and supports up to 30 voice channels in a single network module. A single packet voice network module supports connections to Japanese Private Branch Exchanges (PBXs), and is compliant with the J1 TTC JJ20 standard. The network module eliminates the need to use expensive external third-party T1 to J1 converter products. This network module is ideal for enterprise branches, large businesses and service providers wishing to migrate to packet-based multiservice infrastructures. It also enables the deployment of new packet voice applications while reducing recurring telephony charges.

Figure 1   Digital J1 Packet Voice Network Module (NM-HDV-1J1-30E Pictured)

The Digital J1 Packet Voice Network Module uses a real-time CPU and 12-channel packet voice digital signal processing (DSP) modules (PVDM-12) which support all functions needed to provide the highest levels of voice fidelity and quality, reducing the processing burden from the Cisco 2600, 3600 or 3700's main CPU. The packet voice network module includes a VIC-1J1 voice interface card which offers a single port J1 voice/fax interface.

Now, enterprise offices of several hundred users and managed network service providers can deploy multiservice networking using a single box solution.

Key Features and Benefits

• Interface to Japanese PBXs to route voice and fax, eliminating the need for an expensive external third-party T1 to J1 converter product.
• Programmable digital signal processors can support both medium- (G.729A, G.729B, G.711a- and u-law, G.726 all versions, clear-channel, fax-relay) and high-complexity CODECs (G.728, G.729, G.729B, G.723 all versions, GMS, GSMEFR, modem relay) for customized solutions to meet the need for high voice quality and bandwidth efficiency
• Packet Voice Digital Signal Processor Modules (PVDM-12=) provide the ability to increase the voice processing capabilities within a single network module
• Support of additional modular voice processing requirements on the Cisco 2600, 3600 and 3700 platforms such as routing, dial concentration, firewall, encryption and VPN.

Feature Summary

Table 1   Digital J1 Packet Voice Network Module Feature Summary

Feature	Benefits
J1 Standards Support	Supports the TTC JJ-20.10-12 standard with a line rate of 2.048 Mbps
Scalable from 1 to 30 Voice Channels	Single Network Module scales using from one to five 12-channel packet voice DSP module (PVDM-12) upgrade SIMMs to support from 1 to 30 voice channels.
Standards-Based PCM Encoding	Standards-based ITU-T G.711 PCM encoding provides 64 kbps analog to digital conversion using u-law or A-law.
Standards-based Compression Algorithm Support	Users can choose to either transmit voice across their networks as uncompressed PCM (G.711, u-law and A-law) or compressed from 5.3 kbps to 32 kbps using standards-based compression algorithms (G.729, G.729a/b, G.723.1, G.726, G.728).
Fax Support	Transmit Group III fax and T.38 over any voice channel without sacrificing voice processing resources regardless of compression type.
Voice over IP	Transmit voice across a single frame relay, ATM, ISDN, channelized, or multilink point-to-point protocol (MLPPP) network.
Voice over Frame Relay	Leverage existing or new frame relay network by transporting voice directly over this network using standards based transport methods (FRF.11). VoIP can also be transmitted over Frame Relay.
Voice over ATM	Transport voice directly over ATM networks using AAL 5 encapsulation. Leverages existing ATM networks as a direct transport method for voice. VoIP can also be transported over ATM (VoATM requires ATM network modules such as IMA or OC-3).
Connection Trunk	Creates a tie-line replacement structure while only consuming bandwidth during a call.
Toll Bypass	Reduce or eliminate toll charges assessed by long distance and local carriers by transporting voice and fax traffic across the enterprise intranet, LAN, metropolitan-area network (MAN), or WAN. Businesses incur significant recurring monthly costs for leased lines purely for the interconnection of telecom PBXs and switches. This product gives these enterprises the ability to remove these costly rigid-bandwidth leased lines and replace them with flexible bandwidth lines. The ability to support proprietary PBX signaling types exists by using connection trunking and transparent CCS.
LVBO (Local Voice Busy-Out) and AVBO (Advanced Voice Busy-Out)	Automatically busy out any desired voice trunk line (or individual DS0s) to a PBX when a direct WAN or LAN connection to the router is down. Also, busy out a far end trunk connection when configured for Connection Trunk. AVBO adds the capability to busy out voice trunk lines triggered by Security Assurance Agent (SAA) probes.
Local and Remote Loopback	Supports three types of loopback modes - line and local loopback, and isolation.
T-CCS (Transparent Common Channel Signal)	Supports clear channel transparent common channel signaling
J1 CAS (TTC JJ-20.10-12)	Supports J1 channel associated signaling
H.323 Support	Uses industry-standard signaling protocols for call setup between gateways, gatekeepers, and H.323 end points. Enables comprehensive, flexible application configuration for voice over IP, desktop video conferencing, collaborative computing and electronic whiteboard applications.
DTMF Relay	Carries DTMF tones/information out-of-band for clearer transmission and detection.
Any Call to Any Call with end-to-end Interoperability	Interoperates with Cisco IP phones, analog phones, fax machine connections, and PBX connections to and from any other Cisco voice enabled product.
AVVID IP Telephony Interoperable	Interoperable within Cisco's AVVID IP Telephony architecture (H.323 Networks)
VoIP Call Control Signaling	Supports H.323 call control protocols.
Gateway for IP phones, fax machines and key communication systems to Japanese PBXs	Enables a connection for incoming and outgoing calls to Japanese PBXs using Cisco IP phones, fax machines and other key communnication systems connected to a data, voice and video infrastructure

Feature Highlights

Voice Channel Support

• Up to 30 channels of medium-complexity voice or fax-relay (G.729A, G.729B, G.711a- and u-law, G.726 all versions, clear-channel, fax-relay)
• Up to 30 channels of high-complexity voice or fax-relay (G.728, G.729, G.729B, G.723 all versions, GSM, GSMEFR, modem relay)
• Scalable number of on-board DSPs using PVDM-12=

Voice Feature Support

• Local Voice Busy-Out (LVBO)
• Advanced Voice Busy-Out (AVBO)
• Connection trunk
• PBX tie-line replacement
• AIS Alarm Signaling (per TTC JJ-20.11)

Telephony Interface Signaling Support

• J1 CAS (TTC JJ-20.11)
• Clear Channel Transparent CCS
• E & M Immediate Start, Wink Start

Cisco IOS and Platform Support

• Fully supported via IOS CLI including device configuration, monitoring, link status, security, Layer 2 and 3 protocol configuration and management, and call history
• Supported on all Cisco 2600 and 3600 series routers

Standards Support

• VoIP, VoFR and VoATM support
• H.323 feature support
• H.323 CODEC-negotiation
• H.323 gateway RAS support
• Supports ITU Standard Compression Algorithms (G.729A, G.729B, G.711a- and u-law, G.726 all versions, clear-channel, fax-relay, G.728, G.729, G.729B, G.723 all versions, GSM, GSMEFR, modem relay)

Japanese PBX Interoperability

Interoperability verified with the following PBXs: NEC NEAX 2400, Fujitsu E250 and the Hitachi CX3000MS

Technical Specifications

Table 2   Digital J1 Packet Voice Network Module Technical Specifications

Specification	Standard
Signaling Standards	J1 CAS E & M Immediate Start, Wink Start
Maximum Simultaneous Call Setup	30 calls per Network Module
Interface Type	DB15 Connector (Female)
Line Bit Rate	J1 2.048Mbps
Line Code	CMI (Coded Mark Inversion)
Framing Format	Eight frame multiframe J1 TTC JJ-20.11
Output level (LBO)	2.55 (min), 3.3 (typ) and 3.9 Max Vp-p
Input Level	greater than 0.2 Vp-p and less than 4 Vp-p
Diagnostic Loopback Support	Line Loopback, Local Loopback and Isolation Loopback.
Alarm Detection	Monitors for Loss of Signal, Out of Frame/Loss of Lock and Yellow Alarm. If any of these conditions are present, the alarm LED (labeled AL) on the NM-HDV faceplate will be lit.
LED Indicators	Data carrier detect (CD) Loopback (LP) Alarm (AL)
Physical Interface Standards	TTC JJ.20.10-11
Environmental	Operating temperature: 0 to 40º C (32 to 104° F) Storage temperature: -25 to +70º C (-13 to 158° F) Relative humidity: 5 to 85% noncondensing operating; 5 to 95% noncondensing, nonoperating
MTBF	Digital J1 Packet Voice Interface Card VIC-1J1: 2,745,140 hours

Management

Table 3   Digital J1 Packet Voice Network Module Management

Type	Description
Telnet / Console	Remote and local configuration, monitoring, and troubleshooting from Cisco IOS CLI

Part Numbers

Table 4   Digital J1 Packet Voice Network Module Part Numbers

Product Number	Description
NM-HDV-1J1-30	Single Port 30-Channel J1 High-Density Voice Network Module. Supports 30 channels of medium complexity VoCodecs and fax (G.729A, G.729B, G.711a- and u-law, G.726 all versions, clear-channel, fax-relay) or 18 channels of high complexity VoCodecs (G.728, G.729, G.729B, G.723 all versions, GSM, GSMEFR, modem relay). This product can be upgraded to an NM-HDV-1J1-30(E) simply by adding two additional PVDM-12= modules. This complete bundle includes one (1) NM-HDV=, three (3) PVDM-12=, and one (1) VIC-1J1=.
NM-HDV-1J1-30=	Single Port 30-Channel J1 High-Density Voice Network Module Spare. Supports 30 channels of medium complexity VoCodecs and fax (G.729A, G.729B, G.711a- and u-law, G.726 all versions, clear-channel, fax-relay) , or 18 channels of high complexity VoCodecs and fax(G.728, G.729, G.729B, G.723 all versions, GSM, GSMEFR, modem relay). This product can be upgraded to an NM-HDV-1J1-30(E) simply by adding two additional PVDM-12= modules. This complete bundle includes one (1) NM-HDV=, three (3) PVDM-12=, and one (1) VIC-1J1=.
NM-HDV-1J1-30E	Single Port 30-Enhanced Channel J1 High-Density Voice Network Module. Supports 30 channels of medium complexity VoCodecs and fax (G.729A, G.729B, G.711a- and u-law, G.726 all versions, clear-channel, fax-relay) , or 30 channels of high complexity VoCodecs and fax(G.728, G.729, G.729B, G.723 all versions, GSM, GSMEFR, modem relay). This complete bundle includes one (1) NM-HDV=, five (5) PVDM-12=, and one (1) VIC-1J1=.
NM-HDV-1J1-30E=	Single Port 30-Enhanced Channel J1 High-Density Voice Network Module Spare. Supports 30 channels of medium complexity VoCodecs and fax (G.729A, G.729B, G.711a- and u-law, G.726 all versions, clear-channel, fax-relay), or 30 channels of high complexity VoCodecs and fax (G.728, G.729, G.729B, G.723 all versions, GSM, GSMEFR, modem relay). This complete bundle includes one (1) NM-HDV=, five (5) PVDM-12=, and one (1) VIC-1J1=.
NM-HDV=	High-density voice network module spare. This product can be used as the foundation to build any of the above NM-HDV-1J1 products using combinations of VIC-1J1 and PVDM-12= modules. This product is only orderable as a spare.
VIC-1J1=	Single Port J1 Voice Interface Card. This product can be used as the foundation to build any of the above NM-HDV-1J1 products using combinations of NM-HDV and PVDM-12= modules. This product is only orderable as a spare.
PVDM-12=	12-channel packet voice DSP module upgrade spare. This product must be used in combination with the NM-HDV= to build any of the above NM-HDV-1J1 products. This product can also be used to upgrade the NM-HDV-1J1-30 to the Enhanced version of these products. This product is only orderable as a spare.

Cisco IOS Software and Memory Support

Table 5   Digital J1 Packet Voice Network Module IOS Software and Memory Support

Product Number	Platform	IOS SW Version	IOS Feature Sets	Minimum DRAM Memory	Minimum FLASH Memory
All Digital J1 Packet Voice Network Modules	Cisco 2600	12.2(8)T	All Plus Feature Sets and higher (some IOS Plus Feature Sets require additional DRAM and Flash Memory)   Enterprise Basic for Cisco 261x, Cisco 262x	64 Mbyte for Cisco 2600 Series	16 MB
All Digital J1 Packet Voice Network Modules	Cisco 2600XM	12.2(8)T1	All Plus Feature Sets(some IOS Plus Feature Sets require additional DRAM and Flash Memory)	64 Mbyte for Cisco 2600XM Series	16 MB
All Digital J1 Packet Voice Network Modules	Cisco 3600	12.2(8)T	All Plus Feature Sets and higher (some IOS Plus Feature Sets require additional DRAM and Flash Memory)   Enterprise Basic for Cisco 3620	64 Mbyte (except for Cisco 3660) 96Mbyte for Cisco 3660	16 MB
All Digital J1 Packet Voice Network Modules	Cisco 2691, 3725 and 3745	12.2(13)T	All Plus Feature Sets and higher (some IOS Plus Feature Sets require additional DRAM and Flash Memory)	64 Mbyte for Cisco 2691 128 Mbyte for Cisco 3700 Series	16 MB