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● SM-X-NIM-ADPTR is not supported on SM slots for VG450
● There are no PVDM slots on VG450 motherboard.
Software compatibility
VG450 does not natively support CUBE (Cisco unified border element), CUCME (Cisco unified call manager
express) or SRST (Survivable remote site telephony). Additionally VG450 does not support DSP farm capability.
These functions are only available in ISR4000.
Table 6.
Software compatibility
Product category
Compatible versions
Cisco IOS XE compatibility (4000 Series ISRs)
16.9.2 IOS-XE or later
Cisco Unified Communications Manager
10.5.2 (SU8), 11.5.1SU6 or higher, 12.0.1SU2 or higher
Cisco Unified Communications Manager Express
All version of CUCME compatible with IOS-XE 16.12.1 or higher
Third-party call control
IP-based trunk: SIP and H.323
High density analog voice service module technical specifications
Table 7.
Technical specifications for the FXS and FXO service modules for VG450
Feature
SM-X-8FXS/12FXO
SM-X-16FXS/2FXO
SM-X-24FXS/4FXO
SM-X-72FXS
Tip and ring interfaces for each FXS port (SLIC)
Interface
FXS/FXO (RJ-21)
RJ-21 ports 0 to 7: FXS
RJ-21 ports 8 to 19: FXO
FXS/FXO (RJ-21)
RJ-21 ports 0 to 15: FXS
RJ-21 ports 16 and 17:
FXO
FXS (RJ-21), FXO (RJ-11)
RJ-21 ports 0 to 23: FXS
RJ-11 ports 24 to 27: FXO
FXS (RJ-21)
Address signaling
formats
In-band DTMF
Out-of-band pulse
(8 to 12 pps)
In-band DTMF
Out-of-band pulse
(8 to 12 pps)
In-band DTMF
Out-of-band pulse
(8- to 2 pps)
In-band DTMF
Out-of-band pulse
(8 to 12 pps)
FXS signaling formats
FXS loop-start, ground-
start, and DID signaling
FXS loop-start, ground-
start, and DID signaling
FXS loop-start, ground-start,
and DID signaling
FXS loop-start, ground-start,
and DID signaling
FXS loop resistance
● Up to 600 ohms (including phone or terminal equipment) for short-loop-length port
● Up to 1400 ohms (including phone and terminal equipment) for long-loop-length port
DID loop resistance
● Up to 1800 ohms (including terminal equipment)
On-hook voltage
● -44V
Off-hook loop current
● 25 mA (maximum) for short-loop-length port
● 35 mA (maximum) for long-loop-length port
Ring tone
● Configurable for different country requirements
Ring voltage
● 54 Vrms into 5 ringer equivalence numbers (RENs) at zero-loop-length port (balanced) (short-loop-length port)
● 65 Vrms into 2 RENs at zero-loop-length port (balanced) (long-loop-length port)
Ring frequency
● 20, 25, 30, and 50 Hz
REN loading
● 5 RENs per port (short-loop-length port)
● 2 RENs per port (long-loop-length port)
● For each SM-X-72FXS, Max 40 total REN load in Mode 1 and X total REN load in Mode 2
RJ-11 FXS port
terminating impedance
option
● 600c, 600r, 900c, 900r, complex1, complex2, complex3, complex4, complex5, and complex6
Disconnect supervision
● Power denial (calling party control and far-end disconnect)
Caller ID
● On-hook transmission of frequency-shift-keying (FSK) data
● Support for DTMF caller ID