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0:00:15
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For our next task, for additional srst.
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0:00:18
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We´re told told to modify the Branch1 Phone1 srst reference.
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0:00:22
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From the IP address of the Branch2 CME Router3
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0:00:26
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to the IP address of the Branch1 Router2
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0:00:29
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and provision that router is a traditional srst configuration.
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0:00:33
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with the basic configuration and just note the differences between them.
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0:00:37
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So we´re mgoing to go ahead and take our phones for Branch2 off
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0:00:42
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of srst mode which essentially removes the ACL.
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0:00:46
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It doesn´t just remove it from the line like we had done, but it actually
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0:00:50
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removes it from the router because we´re going to set up
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0:00:52
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a Branch1 srst while that is happening,
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0:00:56
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let´s go ahead and bring up our CUCM
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0:01:00
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configuration CUCM administration or CUMA
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0:01:06
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and let´s go ahead and modify, we´ve already
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0:01:09
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created an srst reference for Branch1
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0:01:14
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and put that in the device pool for the phones.
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0:01:20
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So let´s go ahead and take the phone that is
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0:01:27
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technically at the 177.2 subnet the Branch1 phone and modify it
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0:01:34
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to have the Branch1 subnet. Now in the final configuration
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0:01:38
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I probably will leave it at the Branch2 phones.
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0:01:41
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And you know, I´m also going to leave the description calling it Branch2
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0:01:45
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but you know all that you really need to do to get it to work properly
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0:01:48
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is switch the device pool. I´m going to leave the dn is everything
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0:01:53
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you know 3001, we´re just trying to really
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0:01:59
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kind of point out the differences between the phones. OK,
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0:02:03
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so these phones should actually be falling back.
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0:02:08
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So do an update. Not restarting the
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0:02:12
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phone because it´s probably not reregistered just yet.
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0:02:20
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OK, so it´s a part of the Branch1 device pool
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0:02:25
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which has the Branch1 srst.
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0:02:34
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So we´ll give him a little bit of time for these phones to fall back.
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0:02:37
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In fact, just to help things out of run Branch2, we´ll just bump them
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0:02:50
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OK.
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0:02:53
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And in the meantime, we´ll go ahead and set up Branch1
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0:02:56
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Router2 for traditional srst. So call
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0:03:01
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dash manager fall back, is the traditional srst.
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0:03:05
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And of course, we need IP source address
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0:03:08
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so 177.1.254.2 is the loop back here.
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0:03:13
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We can do a lot of the same things that we can do with CME
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0:03:17
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max dn, let´s just say, I don´t know
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0:03:21
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10, max ephone 10
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0:03:28
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and
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0:03:31
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yes, we don´t even create CNF so
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0:03:36
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you know, a lot of things. Well, pretty much
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0:03:40
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everything that we can do here, we´ve been over in
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0:03:43
|
CME except for the fact that we can´t create
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0:03:47
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individual ephones and ephone dns in show run they still do the same
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0:03:52
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thing when they register they still create POT style dial peers .
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0:03:56
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OK, just like when srst was in SIP or
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0:03:59
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SIP was in srst mode versus CME mode, it still created
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0:04:03
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VOIP dial peers, this underlying functionality is still the same.
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0:04:06
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It´s just that we can´t control them on a command line
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0:04:11
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So instead we have to do everything through the call manager
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0:04:14
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call back interface, so like class of restriction.
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0:04:17
|
We want to apply cor incoming, still up cor incoming
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0:04:22
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you know name of the list, you know key ring
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0:04:26
|
local, whatever we have and then we just say
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0:04:30
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OK, we have, we can either apply it to default all phones
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0:04:35
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or we can say 1. So we can have up to 20 separate
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0:04:41
|
tags or indexes and say apply it to phone
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0:04:45
|
3001 up through phone 3008
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0:04:50
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or we could just say 3001.
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0:04:53
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Now we don´t have that key ring defined so
|
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0:04:56
|
it´s not going to get us any good to configure it.
|
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0:04:59
|
But tha point is, is that everything that we would normally do
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0:05:02
|
trhough ephones and ephone dns in CME or CME as srst
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0:05:08
|
We´re now going to do under the call-manager-call back
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|
0:05:13
|
interface and there´s a lot less that we can do, as well.
|
|
0:05:16
|
And the only thing that we can do here, that we couldn´t do there
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|
0:05:18
|
was the alias command. So we can do something called alias.
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0:05:22
|
That´s where we say alias, give it a tag number
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|
0:05:25
|
and say, let´s alias the number, by the way alias
|
|
0:05:30
|
just like dial plan pattern which we talk about in previous module
|
|
0:05:36
|
Just like ephone dn, just like evrything they create
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|
0:05:39
|
POTS dial peers. So alias, I could create
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|
0:05:43
|
the alias 2001 for instance and alias it over to
|
|
0:05:48
|
3001, since 3001´s actually going to register.
|
|
0:05:53
|
Now, I can do more, I could say alias to tag number 2
|
|
0:05:59
|
3001 to itself 3001, but give it a preference of 1
|
|
0:06:08
|
or just leave it blank and have the preference of 0
|
|
0:06:11
|
and have an alternate call forward or
|
|
0:06:15
|
you know 3850 with a time out of
|
|
0:06:20
|
16 or something like that, OK.
|
|
0:06:23
|
Now, why would I want to do that or how would that actually match?
|
|
0:06:27
|
Am I basically saying create a dn with
|
|
0:06:31
|
destination pattern of 3001, I am.
|
|
0:06:34
|
but wouldn´t one have already been created by the fall back.
|
|
0:06:38
|
indicates that we have, you know 3001 the autonomally here
|
|
0:06:42
|
falling back to Branch1, well it would.
|
|
0:06:46
|
When I said max dn, what I can say
|
|
0:06:49
|
is also I can say, let´s make this an octoline.
|
|
0:06:53
|
Not just a regualr single or dual line and
|
|
0:07:00
|
specify a preference of 2, so when it creates the
|
|
0:07:06
|
POTS dial peer, there is a preference of 2
|
|
0:07:10
|
which is less desirable than a preference of 1.
|
|
0:07:12
|
So the alias would actually take effect
|
|
0:07:15
|
and it would still forward it to the preference of 1
|
|
0:07:19
|
or sorry to other 3001, the preference of 2
|
|
0:07:22
|
but it would have an alternate call forward
|
|
0:07:25
|
then maybe some of my other options there.
|
|
0:07:28
|
So there´s a lot of different things that we can do.
|
|
0:07:32
|
OK.
|
|
0:07:38
|
So everything should be falling back, ok
|
|
0:07:44
|
So let´s take a look at this phone, this 177.2 phone
|
|
0:07:51
|
and make sure that its srst reference is
|
|
0:07:53
|
now 1771254.2, it is.
|
|
0:07:56
|
Good. So now we´re going to go back and
|
|
0:08:00
|
configure srst on a rack for Branch1
|
|
0:08:03
|
on and we´re not going to submit an IP address
|
|
0:08:06
|
because it´s automatically going to block all 177.1.
|
|
0:08:11
|
or sorry 117.2.11 by default.
|
|
0:08:17
|
OK, and that´s really the only phone we want to fall back
|
|
0:08:20
|
So it´s going to go create that ACL on our Corporate headquarter router.
|
|
0:08:28
|
Show access list, it´s gone right now. It´s in the process of
|
|
0:08:32
|
logging in and creating it.
|
|
0:08:37
|
OK.
|
|
0:08:40
|
Router 3, by the way should back to normal function, show ISTN status,
|
|
0:08:45
|
it is. So that mean show run interface
|
|
0:08:49
|
serial 000:15 has been replaced with
|
|
0:08:54
|
ISTN bind with L3 CUCM manager, it has. Great.
|
|
0:09:00
|
Alright. So now we have an ACL blocking 1771254.2
|
|
0:09:08
|
which is the loop back which is blocking h323 communication
|
|
0:09:11
|
is what´s being match and fairly shortly we should see.
|
|
0:09:17
|
By the way, if we don´t have any IPs entered,we just enter 000
|
|
0:09:21
|
shouldn´t cause a problem, so 1772.0.0 with a slash 16
|
|
0:09:28
|
block to the pub or Skinny and SIP
|
|
0:09:34
|
and block to the sub fo Skinny and SIP, there we go. Now we´ve tried
|
|
0:09:40
|
and we should be falling back here shortly.
|
|
0:09:47
|
Do show call-manager, there we go.
|
|
0:09:51
|
Righe before I did that, we had a phone register.
|
|
0:09:56
|
And it´s not nearly as fully featured
|
|
0:10:00
|
I mean there´s a lot we can do, in terms of
|
|
0:10:05
|
We´re going over to our phones and see if any of them are, yes
|
|
0:10:09
|
This one actually stayed with us throughout the whole
|
|
0:10:11
|
thing because we´re controlling the IP address.
|
|
0:10:18
|
There we go, so here´s our 177.2.11.52 phone
|
|
0:10:24
|
CM fall back service for second change the system message.
|
|
0:10:29
|
But I don´t have control over is things like
|
|
0:10:31
|
the line text label which if you remember
|
|
0:10:33
|
when our SIP phone and our Skinny phones fell back in to CME
|
|
0:10:40
|
at least our, yes, fall back in the CME as srst
|
|
0:10:44
|
really it does applied to both, they did retain their
|
|
0:10:48
|
or at least I had to ability to provision their
|
|
0:10:51
|
line text labels and all of that information.
|
|
0:10:55
|
OK, so and retain their intercom and their BLF and
|
|
0:11:00
|
I have a lot more control over CME as srst.
|
|
0:11:04
|
Can still do a lot of things in
|
|
0:11:08
|
traditional SRST, call manager fall back. But I´ve got a lot less
|
|
0:11:13
|
control. I don´t have hunt groups, I can´t have a lot of functionality.
|
|
0:11:19
|
OK, so I mean the phone works. There´s no problem with it.
|
|
0:11:23
|
In fact, it should be able to dial out to the PSTN.
|
|
0:11:28
|
Let´s hang up and do 911 dial.
|
|
0:11:33
|
Sure, it can dial out to the PSTN.
|
|
0:11:38
|
Where´s my PSTN phone? There it is.
|
|
0:11:43
|
I refresh this page, we should be able to see it dial out there.
|
|
0:11:48
|
I got it refresh in time, yes, there we go.
|
|
0:11:52
|
OK, so there´s no problem and I can create voice
|
|
0:11:55
|
translation rules to make it, so that it´s
|
|
0:11:59
|
you know, actually the e164 number already has been expanded
|
|
0:12:02
|
due to voice translation was there, the name is 3002
|
|
0:12:06
|
So I´ve got a lot less functionality, right, but
|
|
0:12:12
|
the point is, is that you do have the option of traditional srst.
|
|
0:12:15
|
If you know how to do it in CME as SRST, it´s a lot more powerful.
|
|
0:12:21
|
There´s a lot more you can do there, but you can
|
|
0:12:25
|
get a decent amount of functionality out of the older
|
|
0:12:30
|
traditional srst. Remember that barge would be one of the things
|
|
0:12:34
|
that you can´t do, even if you have two lines
|
|
0:12:36
|
two phones that show up with a shared line.
|
|
0:12:40
|
|
