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Overview Page 21 of 258
Main Office Configuration for Survivable Remote Gateway 50 Configuration Guide
Interface: Features (553-3001-369) for more information about these
features.
• Network Attendant Service (NAS) package 159. This package is
required for analog (500/2500-type) telephones in the branch office to
access attendant services when the attendant is configured on the main
office.
• Network Message Services (NMS) package 175. This package is
required for analog (500/2500-type) telephones in the branch office to
share the voicemail system in the main office. For any configurations
using centralized CallPilot on the main office with one or more branch
offices in separate time zones, the NMS package is required at the main
office for the branch IP Phones.
Optional features to enhance SRG functionality
• Network Alternate Route Selection (NARS) package 58. Refer to Basic
Network Features (553-3001-379).
• Overlap Signaling (OVLP) package 184. This package is optional; it is
required for overlap signaling. It is packaged with H.323 Virtual Trunk
(H323_VTRK) package 399 (Release 4.0 only).
• Emergency Services Access (ESA) package 329. This package is
optional; it is required only to receive 911/ESA features in North
American and some Caribbean and Latin American (CALA) markets.
Refer to Emergency Services Access: Description and Administration
(553-3001-313).
• Virtual Office (VIRTUAL_OFFICE) package 382. This package is
optional; it is required only for Virtual Office functionality.
• Network Signaling (NSIG) package 37. This package is optional for
SRG IP Phones to access set-based Network Class of Service (NCOS)
features.
• Adaptive Network Bandwidth Management package 407.
• Alternative Call Routing for Network Bandwidth Management.
For software and hardware requirements for SRG, refer to SRG50
Configuration Guide.