Cisco Cisco IOS Software Release 12.4(9)T

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Enhanced MF for FGD and Analog CAMA Trunks
  Information About Enhanced MF for FGD and Analog CAMA Trunks
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Enhanced MF for FGD and Analog CAMA Trunks
According the FCC, all VoIP providers must have some method of interconnect to the selective 
router (SR) by November 28, 2005. At that time the new minimum requirement was upgraded to 
support a 10-digit ANI or SS7, which provides additional digits. While 20-digit ANI is not yet a 
requirement, this feature provides location-based ANI and Call Back Number (CBN) capability for 
911 calls.
Compliance with Emergency Interconnect requirements for the USA and Canada.
The following additional features are supported:
SS7 interconnect with PGW to SRs
MF and CAMA connection to SRs with SIP
20-digit ANI support for MF trunks on the Cisco AS5400
20-digit ANI support for CAMA trunks on ISR with the CAMA interface card
RPID is mapped to PANI and the From field is mapped to ANI based on specific configuration tasks
New command-line interface (CLI) to configure RPID and From field mapping from SIP to PANI 
and ANI plus new CLI to configure the FGD EMF/Analog CAMA option to support 20-digit ANI 
(ANI + PANI)
Info digit capability for FGD EMF and CAMA EMF
Support for the CSMv6 DSP card
FCC E911 VoIP
As part of the FCC E911 VoIP order that was released in June, 2005, the FCC mandated that providers 
of interconnected VoIP services must provide E911 service to all of their customers as a standard feature, 
rather than as an optional enhancement. It was further required that E911 service be provided from 
wherever the customer is using the service, whether at home or elsewhere. 
As a result, an advanced E911 solution has been created that includes a method to determine a user’s 
location without assistance from the user. This location information (ALI) is provided along with the 
identification information (ANI) to the SR or PSAP, where supported. Because part of the connectivity 
to the SR or PSAP involves FGD-OS and analog CAMA signaling, this signaling has been modified to 
support sending ALI (sometimes referred to as Pseudo ANI [PANI]) along with the ANI.
 shows an E911 network using packet gateways.
Figure 1
E911 Network using Packet Gateways
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V
SIP proxy
GW
EO
EO
V
GW
V
PSAP GW
V
E911 GW
FGD-OS
CAMA/EMF
PSAP
PSAP
PSAP
SR
Packet network