General
SBC - Session Border Controller. has public and private ip address. performs NAT and security/fraud checking. invites
from customer go to SBC then SBC to NS to lookup address. SBC keeps port open between the client phone/pbx.
AS - Application Servers. gives all the services/features and handle call setup and tear down. always in pairs
(clusters). No dial plan!! if making call from inside the enterprise AS will route call if it stays inside its
group. If it does not find the address it will ask the NS how to route the call. AS creates all the billing records.
AS has to have NS tell it what call type and call category it is.
NS - Network Server. Core routing for system. knows all the AS's in the enterprise, gateways, and holds all the dialplans.
NS allows for single domain (voip.cableone.net) when using multiple AS clusters.
MGC - Media Gateway's (PSTN). On incoming call converts to SIP and RTP and looks up address on NS for routing to AS.
MS - Media servers. Handle three way calling, ring all, conferencing, IVR, plays busy greetings (audio files). voice mail
records are handled by media server. We do not use them for RTP though. We use Level 3 for RTP.
XSP - Web Server. proxy through for phone provisions to PS.
PS - Profile Server.
EMS - Element Management Server. Does alarming and data aggregation. Also able to download software updates and notify you of them.
it does no auto patching
AMS - skinny/SIP conversion with cisco phones
NS Network server - Core routing and translation server
Introduction
SBC, AS, Gateway, XSP all communicate with NS to determine route.
AS ask for routing on any destination outside of group?
Gateways ask for routing calls inbound all the time (single domain with multi AS clusters).
AS's use sync API to sync all enterprise, group, user, tn's, etc., info to NS so it can do lookups.
sync API should never be turned off.
NS_CLI/System/Device/RoutingNE> for gateways
NS_CLI/System/Device/RoutingNE/Address> to give the gateway an address (IP or FQDN)
NS_CLI/System/Device/ResourceNE> for media servers
NS_CLI/System/Device/ResourceNE/Address> to give media server an address (IP or FQDN)
NS_CLI/System/Device/HostingNE> for AS clusters/pairs
NS_CLI/System/Device/HostingNE/Address> to give application server an address (IP or FQDN)
NS Network server - Core routing and translation server
Policies and Profiles
Controls number normalization, translation, billing, routing, digit manipulation. set of instructions that tells
the NS how to do a task.
NS_CLI/Policy/Profile> set profiles for inbound and outbound. set profiles for groups of customers. IE residential vs business.
NearEndRtg, SvcCtrRtg, FarEndRtg are all policies to get a voip call out to PSTN.
NS_CLI/System/Device/RoutingNE> get
You can see what profile is assigned to the gateways.
NS_CLI/SubscriberMgmt/Enterprise> get
see hosting profiles for the enterprise.
VTR (source number in e164 format, destination number)
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