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SCN Total Clarification 1

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dthszn

Technical User
Oct 23, 2008
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I need some clarification. I would be happy to RTFM, but I can't find any documentation in TFM to clarify my question. I want to add another SCN to a system that will put my total users over the 500 limit. When counting the total users, is it just the total of the users in the manager program of each system? Do analogue users make a difference in the total? Does a virtual user (no extension) count against the total? Does the user count against the total if there is not an acutal digital or analogue phone plugged into the system (we have some spares set up so we can easily add them remotely). If I just set up an IP line to the hub and set the dial plan and force it over the IP line and leave the voice networking off, does that count against the total? I know that upgrading to R6 will solve my issue, but I can't do that yet. There is a need of some other hardware upgrades first. Nothing can ever be simple. Any help or direction in TFM would be greatly appreciated.
 
It is about the extensions!!!

Tell us what software version and ipo's you have.
How many users do you have before and after you connect it ?
Just building an ipline does not count so that is an option.


ACSS IP Office
APSS IP Office
APSS UC
ACA - Implement IP Telephony -- ACA - Design IP Telephony
ACA - Voice Services Management


______________
Women and cats can do as they please and men and dogs should relax and get used to the idea!
 
Here they talk about users, extensions is for single systems:

Code:
Small Community Networking


IP Office systems linked by IP trunks can enable voice networking to form a Small Community Network (SCN). Within an SCN the separate IP Office systems 'learn' each other's extension numbers and user names. This allows extension calls between systems and support for a range of internal call features, see Supported SCN Features.

 

Capacity

The following are the supported capacity limits for a Small Community Network system. 
IP Office Software Level	
Pre-5.0	
5.0+	
6.0+

Maximum Number of IP Office Systems	
16	
32	
32

Maximum Number of Users	
500	
500	
1000

Maximum H323 SCN Line Hops Between Systems	
5	
5	
5

Star H323 SCN Line Layout	
	
	


Serial H323 SCN Line Layout	
	
	


Mesh H323 SCN Line Layout	
	
	

•	Small Community Networks using IP Office's with differing software levels will operate (see Software Level Interoperation below). However for a Small Community Network with more than 16 systems, only IP Office Release 5 systems are supported. If a pre-IP Office Release 5 system is included in a network of more than 16 IP Office systems, it will not receive any SCN support. 


 

Configuration Summary

To set up a small community network, the following are required:•	A working H323 trunk between the IP Office systems, that has been tested for correct voice and data traffic routing.
•	The arrangement the H323 trunks must meet the requirements detailed in Supported SCN Network Layouts. 
•	On IP500 and IP500 V2 systems, H323 trunks require the entry of IP500 Voice Networking licenses. 
•	VCM modules are required in all systems.
•	The extension, user and group numbering on each system must be unique.
•	The user and group names on each system must be unique.
•	We also recommend that all names and numbers (line, services, etc) on the separate IP Office systems are kept unique. This will reduce potential maintenance confusion.
•	All systems should use the same set of telephony timers, especially the Default No Answer Time.


 

Software Level Interoperation 

SCN is supported between IP Office systems with the same major software level or one level of difference in major software level. For example between 4.2 and 4.1 (same major level) and between 5.0 and 4.2 (one major level of difference). 

This option is intended mainly to allow the phased upgrading of sites within a Small Community Network. It is still recommended that all systems within a network are upgraded to the same level where possible. Within a SCN using differing levels of software, network features will 
be based on the lowest level of software within the network.







ACSS IP Office
APSS IP Office
APSS UC
ACA - Implement IP Telephony -- ACA - Design IP Telephony
ACA - Voice Services Management


______________
Women and cats can do as they please and men and dogs should relax and get used to the idea!
 
All of the systems are at 4.2.20. The hub is a 412 and and there is 1 412 and 3 406's on the spokes. I want to add antother 406. There are 450 users, but 550 extensions. The extra extensions are set up but with no physical phone attached. The system to be added has 110 extensions being used. Does avaya have this documented anywhere? Thanks.
 
Its not in TFM because it doesn't need to be. There are no lines to read between because there is only one line: Up to 500 users across up to 16 systems. [Adjust numbers according to the lowest software level in your SCN]
 
Unless you plan on using distributed huntgroups or centralised VM etc then go with you original plan of just routing calls using shortcodes and leaving SCN off. That way you can have as many users as you like (obviously within the local systems limit) as it will not count as an SCN so no 500 total limit to worry about :)

ACSS Small and Medium Enterprise (SME) Communications

I've just bought a brand new car and on the way out of the dealership the engine seized, they want £2000 paid in advance to look at it which they will keep if they can find a way to blame me for it......Remind you of anything :)
 
Thanks very much. No distributed hunt groups needed, so I will set up my IP Line and leave my SCN off. Shouldn't be a problem. Part of the question is for the future. We are planning on going to R6 and adding more sites that will put the users over 1000 and we may need the distributed hunt groups and it may be on centralized VM. Some of this may help in the setup as the business expands. I understand it sounds like a stupid question, but what constitutes a extension. If I have Dig 30, but I'm only using 20 extension, does the entire 30 count to the total or is it only 20. Some of the sites had growth factored in that hasn't materized at the current time. If I have a virtual user without an extension, does that count towards the total.
 
If a port (analog or digital) is not used then remove the extension from it.
This will give you 100 less extension in the SCN which is 450.
So if you use 20 then remove those other 10.


ACSS IP Office
APSS IP Office
APSS UC
ACA - Implement IP Telephony -- ACA - Design IP Telephony
ACA - Voice Services Management


______________
Women and cats can do as they please and men and dogs should relax and get used to the idea!
 
Thank you tipeter. I've talked to 2 BP and 2 different vendors and I could not get the same answer from anyone. That is why I asked for documentation. I assume that you mean the corresponding user to the base extension since you can't delete an actual base extension. Sorry for the slow follow up, but I had to go work for a bit.
 
Yes you can remove the extension but not delete the port.
The port is still there but if youplug in a phone then it is a "no user"


ACSS IP Office
APSS IP Office
APSS UC
ACA - Implement IP Telephony -- ACA - Design IP Telephony
ACA - Voice Services Management


______________
Women and cats can do as they please and men and dogs should relax and get used to the idea!
 
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