Datasheet

Data Sheet
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For basic telephone users, both 33.6K and 56K modem calls can be terminated through a PRI or
BRI connection into a digital modem network module, including mobile workers and people
working from hotel rooms. For teleworkers with access to BRI, the same phone number could be
used to connect to the same Cisco 3600, 3700, or 3800, achieving 64 kbps noncompressed, or
with Multilink PPP, 128 kbps.
Multiple backhaul options are available to link back to a corporate network, at speeds up to 8
Mbps. Additionally, a slower-speed (T1 or Frame Relay, for example) connection could link the
branch to the World Wide Web.
Figure 2. Illustrates a Typical Application for the ISDN PRI and Digital Modem Network Modules
Table 2. Gives Ordering Information for the Digital Modem Network Modules
Product Orderable Available Minimum Cisco IOS Version
NM-6DM October 1997 October 1997 11.2 (9) XA
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NM-12DM October 1997 October 1997 11.2 (9) XA
NM-18DM October 1997 October 1997 11.2 (9) XA
NM-24DM October 1997 October 1997 11.2 (9) XA
NM-30DM October 1997 October 1997 11.2 (9) XA
MICA-6MOD October 1997 October 1997 11.2 (9) XA
MMTL-3600 October 1997 October 1997 11.2 (9) XA
Memory requirements for the each digital modem network module include:
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300 KB main memory
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200 KB input/output (I/O) memory
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V.92 is not supported on 3620 until sixth Cisco IOS 12.2T release.
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