I want to know more on DS1 Remoting

[snavalgund]

I want to know more on DS1 Remoting EPN?
What are the features it supports? Maximun number of ports it will support on EPN? Is it a reliable way of doing it.?Pls put in your experencies on it if you have any in you network?
Thanks Shridhar Navalgund

 

[europe]

it supports all features, an the nice thingis that switching is allways done in the Remoted EPN.
(this means a local extension calls out over a local trunk and does NOT engage a timeslot on the link between the EPN and the PPN, for incoming calls on that EPN going to a station on that same EPN it is the same way)

It supports basically a full EPN, your only limitation is the number of timeslots between the EPN and the PPN. Any PN (Port Network) in DEFINITY supports 241 simultanious calls. A fiber link between two PN's supports 380 simultanious calls (thus a fiber link is none blocking).
With T1 remoted EPN you can have 4 T1's going to that location, which means 96 B-channels. Some of those 96 channels are used for system signaling, so you have 90 simultanious calls (approx.)
With E1 remoted EPN you can have 4 E1's going to that location, which means 120 B-channels. Some of those 96 channels are used for system signaling, so you have 114 simultanious calls (approx.)

The reliability depends on the E1 or T1 reliability in the region you want to instal this. Over here in the Netherlands E1 is pretty reliable (99,9 availability).
So based on personal experiance I can say it works well for either smaller locations, or bigger locations with their own trunks.

I support one location with a remoted EPN that has a Survivability Options, since install (2 years ago) never had any problems.

I know of one user here in the Netherlands that has a least 4 remoted EPN's


Please let me know if the information that was provided is helpfull.
Edwin Plat
A.K.A. Europe

 

[lopes1211]

Works great especially when users/agents constantly moving back and forth between sites (EPN's and PPN's). All programming is transparent, they just use a different station port depending on which cabinet the user is at. 4 channels are used for signalling. With 1 T-1, you get 20 voice channels to the PPN (+ 4 used for signalling). With 2 T-1's, you get 44 channels to the PPN (+ 4 used for signalling), etc........... 4 T-1's max for a total of 92 channels back to the PPN (+ 4 used for signalling). If you have in/out trunking designed properly on the EPN, you could have up to the max CCS (about 14K) active at the EPN indepenedent of tie line channels. i.e., you could have 200+ agents on calls via trunks coming directly into the PPN all being controlled by the 4 signalling channels back to the processor. -CL

 

[jimbojimbo]

Remote EPN via DS1C is a viable option for most situations. You can also have a survivable remote if reliability is critical. The main issue is the link slots. This may not be a good idea if any of the following apply:

1. Intra-switch traffic will overwhelm the DS1C link.
2. Remote EPN is using VM on central site with AutoAttendant and volume is large/critical.
3. Remote EPN uses centralized Conversant (same as above situation).
4. Cost of DS1 circuits is high and benefit is low. (ie remote site only has a few users). There may be more cost effective solutions.

Benefits include:

1. RTU, RTU, RTU, RTU... did I say it enough. The RTU cost savings can be tremendous. If the centralized switch has the RTU, it applies to the remoted EPN also.

2. Reduced Toll Charges. This is becoming less important as the bottom falls out of the LD market.

3. Centralized administartion. The entire network is seen as one switch.

James Middleton
ACSCI/ACSCD/MCSE
Xeta Technologies
jim.middleton@xeta.com

 

[snavalgund]

Thks all of you all.
Shridhar Navalgund