Cisco Cisco IOS Software Release 12.4(4)T

Cisco Systems, Inc.
www.cisco.com

The Cisco V.150.1 Minimum Essential Requirements feature complies with the requirements of the 
National Security Agency (NSA) SCIP-216 Minimum Essential Requirements (MER) for V.150.1 
recommendation. The SCIP-216 recommendation has simplified the existing V.150.1 requirements. 
Beginning with Cisco IOS Release 15.6(2)T and Cisco Unified Communications Manager Release 
10.5(2), Cisco V.150.1 MER feature is enhanced to support interoperability with third-party devices. 

The support for Cisco V.150.1 MER is available from Cisco IOS Release 15.1(4)M and Cisco 
Communications Manager Release 8.6, where in the negotiation support is added to the following 
interfaces:

Skinny Client Control Protocol (SCCP) for analog gateway endpoints and Secure Communication 
Interoperability Protocol—End Instruments (SCIP—EI) 

Media Gateway Control Protocol (MGCP) T1 (PRI and channel-associated signaling [CAS]) and E1 
(PRI) trunks

Cisco Unified Communications Manager (Unified Communications Manager) Session Initiation 
Protocol (SIP) trunks

This feature also provides support for Unified Capability Requirement (UCR) 2008 Modem over 
IP (MoIP) and Fax over IP (FoIP).

The V.150.1 is an ITU recommendation for using a modem over IP networks that support dialup modem 
calls for large installed bases of modems and telephony devices operating on a traditional public 
switched telephone network (PSTN). The V.150.1 recommendation specifically defines how to relay 
data from modems and telephony devices on a PSTN into and out of an IP network via a modem. 

In Cisco IOS Release 12.4(4)T, Cisco developed the Secure Communication Between IP Secure 
Endpoint and Trunk-Side Secure Terminal Equipment (STE) Endpoint feature, and in Cisco IOS Release 
12.4(9)T, the Secure Communication Between IP Secure Endpoint and Line-Side STE Endpoint feature 
to meet the requirements of this standard. In this document, these features are referred to as 
“Cisco Legacy V.150.1.”