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IP Phone S1 & S2 Address

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HASAGO

Vendor
Sep 28, 2005
248
AU
I am wondering if someone can confirm the Nortel recommended settings for the S1 and S2 IP address that registers to an SRG system. My impression is that the S1 address should be the SRG IP address and the S2 should be the CS1K Sig Server Node IP address as a fallback. What does everyone else set them to?
 
We have ours set as:

C1000 Core 1 TLAN 10.1.76.76 (S1 setting on phone)
Cs1000 Core 2 (backup to Core 1)
SRC (Core 3) in remote location 10.3.76.76 (S2 setting on phone)
Those are our Node IPs for the phones.
 
If you only have 1 main office with the Sets for the SRG then S1&2 can be set for the SRG. Normal operation forwarded to the MO by the SRG, they have no reason to return to the SRG except for a fault (WAN failure etc). Then once the fault is resolved they will return to the MO.

If you set the S2 address for the MO, it would be fairly pointless because if they could get there they would already be there.

With Tman45 I would say it should be:
C1000 Core 1 TLAN 10.1.76.76
Cs1000 Core 2 (backup to Core 1) S1 setting on Phone NUID and NHTN set NRS forwards to Core 1
SRG (Core 3) in remote location 10.3.76.76 (S2 setting on phone) NRS forwards to Core 1
 
Hey Bignose21 - so our settings are not correct for our Core1 Core2 site?? We were told that Core2 will assume the same IP 10.1.76.76 so technically either Core will take control of the voice - is that right?
 
Tman

So the core 1 and 2 are actually a CS1000E HA i think you mean (Only one switch). I thought you meant you had 2 CS1000E's in 1+1 GR or Controlled load sharing and an SRG.

I did a customer where all sets could register the branch, CS1000E node 1 and CS1000E node 2 thought that was what you meant that you had.
 
Correctamundo bignose21 :) Core 1 and 2 is our main office and we have a SRG/SRC at another site. We use a relaxed node config of 400 so all the phones can register to either node ;)

 
Tman45 in your config, the SRG at other site - the sets there use that site for S1 and main site for S2?

Mato' Was'aka
 
First off sorry for the threadjacking HASAGO - bigindian65 our SRG site uses that local site IP for S1 and main site IP for S2 ... does that sound right?

Example:
Main Site uses:
10.1.76.76 for S1
10.3.76.76 for S2

SRG site uses:
10.3.76.76 for S1
10.1.76.76 for S2

I believe since our main site is up that phones are forwarded from the SRG site to the main site via NRS.

If we have an outage than our SRG runs itself on the 10.3.76.76 since the 10.1.76.76 is unavailable (in the outage scenario).

So to answer HASAGO's question it sounds like his initial statement is how we have ours set - so that is correct, right? Sorry if I confused things by having our HA core posted as well :D Just figured maybe HASAGO has a similar setup since it wasn't specified - I try to post the setup we have since that is what I am most familiar with.
We used to have a branch site of a CS1000S that had a similar setup (the SRG would be the branch).
 
THANK YOU BIG for clarifying for us! Did that help you out properly HASAGO or do you have any other questions?
 
How do you guys handle DHCP to the phones? Do you have a single dhcp server that both sites point to, or do you have 2 seperate ones?
Or do you just assign the phones with Static.
We're doing some testing before our new site is live (3 sites, Rl6, GR) phones are dhcp to one site. Now if we take the path from one pbx to another down, but the leave the gw up, the local switch reboots and tries to take control as is should, but the phones - since they still have a path the the dhcp server, dont blink nor seem to have an issue, until of course you go to use it.
 
Right we have a separate DHCP server at our Main site and a separate DHCP sever at our SRG site. One hands out our 10.1.76 IPs and the other hands our our 10.3.76 IPs :)
Best of luck to your new live site!
 
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