4.2.2 Network Type ComparisonDescriptionThis section summarises the main differences between the two methods for connecting PBXs over an IPnetwork: One-look networking and H.323 (VoIP) QSIG networking. It also explains which situations each typeof network is suited for.Overview of characteristicsItem One-look Network H.323 QSIG NetworkConnection type Private IP network Private IP networkCompatible PBX type • KX-NS1000 • KX-NS1000• KX-NCP series• KX-TDE series• KX-TDA seriesPBX relationship Master–Slave IndependentProgramming andconfigurationUnified: Settings made on theMaster unit are automaticallypropagated to Slave units.Independent: Each PBX in thenetwork must be programmedindividually.Maximum number ofnodes16 (1 Master, 15 Slaves) 512Minimum systemrequirementsOne KX-NSN001 (Activation Key forOne-look Network) per PBXOne V-IPGW card per PBX*1*1 For non-KX-NS1000 PBXs, requirements may differ.When to choose a One-look networkIf the network will consist only of KX-NS1000 PBXs and a private IP network is feasible, then a One-looknetwork is probably the better option. A considerable amount of setup is done automatically by the PBXs, sosetup and maintenance is much simpler. All units can be programmed from one location. This simple setupand programming means that the PBX network can be expanded with considerably less effort.Extensions are managed so they behave as if they were all connected to one PBX, which eliminates the needto manage information such as PBX access codes.However, resource sharing also requires a lot of bandwidth, since the Master unit must constantly monitor andmanage the status of the Slave units and connected devices. Therefore, if bandwidth is a concern, an H.323QSIG network may be preferable.When to choose an H.323 QSIG networkIf the network will include non-KX-NS1000 PBXs (e.g., KX-TDE200, KX-NCP500), then an H.323 QSIGnetwork is necessary.An H.323 QSIG network is preferable if strict resource separation between sites is necessary. Although it ispossible to reserve certain resources for certain extension users in a One-look network, the default is to shareresources. On the other hand, in a QSIG network, resources are not available to extension users of other PBXswithout explicit programming.Programming and configuring an H.323 QSIG network is much more complex than a One-look network.It is also possible to connect a One-look network to other PBXs via QSIG. In an H.323 QSIG network, theOne-look network appears as one PBX. The Master unit represents the One-look network.Feature Guide 3614.2.2 Network Type Comparison
