Outbound Calls stop working when Lync Edge server is offline

All,
We have had an issue inside our environment after one of our virtual hosts died and took out our sole Edge server, basically users could not dial out and were getting the error "Network is busy" on the client. Internal dialling worked perfectly to our Lync
users but the users could not dial out via our Cisco CME server.
Our configuration is a Lync Enterprise Pool with 2 servers, DB cluster and a single Lync edge server, the mediation servers are installed on our enterprise pool servers as a single server and the CME is looking at the mediation servers directly and has nothing
pointing at the edge server.
This issue affected internal users (as the external users were all kicked out due to the server being down), the strange thing was that you got errors in snooper about the server being unavailable when you dialled out, no idea why it did this. Even stranger
was that the call itself was sent to the CME as a debug SIP showed traffic being attempted between the user and the number which confused me even more as my mobile actually rang for a single ring as well.
Has anybody got any ideas as to why the Edge server would do this to internal users?
Thanks
James

Lync checks the bandwith policy against the Edge server. As the Edge is not responding Lync is unable to check the policy and the call fails.
For the time being you may want to remove the Edge from the topology, then Lync checks against the Front End server.
I hope you do understand, that this is not a great solution, but a drastic workaround suggestion to a hidden product defect! In hidden product defect I mean Microsoft Lync document team is cynically silent and trying to cover the tracks of this product defect.
What I would consider as a straight and honest retroactive action for the Lync document team, to add a big warning section to a) single server edge deployment page + b) the Call Admission Control caveats page on Technet:
"Warning: PRODUCT DEFECT / PRODUCT LIMITATION comes here
If you associate an edge server or pool to a FE pool, and enable Call Admission Control, your single / pool edge will become SINGLE POINT OF FAILURE for your entire enterprise telephony when doing outbound call attempts!
So if outbound calls is important in your company (hell, of course it is!) then deploy at least 2x Edge servers in the same pool before enable CAC!"
But I think that warning message is way too much to ask for, thatswhy is this 2,5 years old topic still open.

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Problems with SNOM 7XX phones and presence of Lync Edge server

Hi to all,
we have this problem, this is the scenario (two Lync 2013 st ed. servers):
- lync 2013 FE server have internal IP address 172.21.212.XXX with internal gateway 172.21.212.254
- lync 2013 edge server have two network interface:
First INTERFACE: 3 IPs in 172.21.30.XXX (Access, web and A/V Edge) for external connection with 172.21.30.254 and internal gateway (IP NAT with public IP)
Second INTERFACE: IP 172.21.212.XXX for internal connection without gateway
- snom 7XX (50 phones) are connect to the lync server and all internal call works fine. All phones are in an internal dedicated network 172.21.218.XXX with default gateway 172.21.218.254
- when making external call with 7XX SNOM phones, the call was routed to Trunk COLT with Lync Mediation server and all works fine.
- when Lync Mediation server receive a call from our trunk COLT we have this situation:
All Lync 2013 clients work fine, audio is OK, (network 172.21.216.XXX)
Polycom CX3000 work fine audio is OK (network 172.21.218.XXX)
SNOM 710, 720, 760 FW 8.8.2.16 UC series, phones ring but NO SOUNDS from the phones and after a few seconds "Call failed due to network issues."
The only way to solve the problem is to disable the connection with Lync Edge server (remove gateway 172.21.30.254)
BUT this is not the solution because now we have no connection with INTERNET (skype, web conferencing doesen't work without edge gateway)
Why SNOM phones try to use the EDGE gateway to connect the call? Why doesn't use Lync Mediation server?
Can you help us to find a solution?
Thanks
Aurelio

Hi,
Thanks to all for yours support.
Today, we have done some test (no employee in office today
J) and we have solved the problems.
The old implementation have had this configuration:
- the phone numbers have had a no E.164 format compliant: for all users number, the phone number have had this format TEL:012345XYZW ; EXT=XYZW with the normalization
rules:
Starting digits: 01234567
Length: At least 8 digits
Digit to remove: 0
Digit to add: nothing
Pattern to match ^(01234567\d*)$
All worked fine with this previous configuration:
Lync 2010 std with only mediation server function + Lync 2013 std front-end with all the others functions and Lync 2013 std Edge server for external connection with
Lync client Skype world, BUT we have had disabled in SNOM phones ICE function because if ICE was enabled no voice can we hear from the phones.
After dismissed Lync 2010 with only a Lync 2013 infrastructure, this configuration don’t permit to use edge server because with ICE enabled or disabled no voice from
SNOM phones.
Today we have done this operation:
Setting in Lync 2013 control panel all number for all users, in E.164 format compliant:
The phone number now have this format TEL:+39012345XYZW ; EXT=XYZW and we have deleted the previous normalization roles.
We have added this role for the EXT numbers:
Name: Routing Interno
Starting Digits: XY
Length: Exactly 4 (i.e. XYZW)
Digit to remove 0
Digit to add: +39012345
Pattern to match: ^(XY\d(2))$
Translation rule: +39012345$1
Internal extension = checked
And now all work fine.
We have solved another problem:
Lync client 2013 can't find new users:
all new Lync users are not discovered from Lync 2013 client, probably because this setting is present with Lync 2010:
PS C:\> Get-CsAddressBookConfiguration
Identity
: Global
RunTimeOfDay
: 1:30 AM
KeepDuration
: 30
SynchronizePollingInterval : 00:00:30
MaxDeltaFileSizePercentage : 20
UseNormalizationRules
: True
IgnoreGenericRules
: False
EnableFileGeneration
: True
With only Lync 2013 servers we have changed
IgnoreGenericRules to True
To set UseNormalizationRules and IgnoreGenericRules to true for Lynk 2013 infrastructure.
http://technet.microsoft.com/en-us/library/jj205160.aspx
For us all the problems are SOLVED!
Aurelio

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Active Connections
Proto Local Address          Foreign Address        State           PID
TCP    0.0.0.0:80             0.0.0.0:0              LISTENING       4
TCP    0.0.0.0:135            0.0.0.0:0              LISTENING       756
TCP    0.0.0.0:443            0.0.0.0:0              LISTENING       4
TCP    0.0.0.0:445            0.0.0.0:0              LISTENING       4
TCP    0.0.0.0:3389           0.0.0.0:0              LISTENING       2804
TCP    0.0.0.0:4443           0.0.0.0:0              LISTENING       4
TCP    0.0.0.0:47001          0.0.0.0:0              LISTENING       4
TCP    0.0.0.0:49152          0.0.0.0:0              LISTENING       468
TCP    0.0.0.0:49153          0.0.0.0:0              LISTENING       844
TCP    0.0.0.0:49154          0.0.0.0:0              LISTENING       896
TCP    0.0.0.0:49338          0.0.0.0:0              LISTENING       1400
TCP    0.0.0.0:56483          0.0.0.0:0              LISTENING       572
TCP    0.0.0.0:56966          0.0.0.0:0              LISTENING       564
TCP    0.0.0.0:56967          0.0.0.0:0              LISTENING       2824
TCP    192.100.100.84:139     0.0.0.0:0              LISTENING       4
TCP    192.100.100.84:444     0.0.0.0:0              LISTENING       1768
TCP    192.100.100.84:5061    0.0.0.0:0              LISTENING       1908
TCP    192.100.100.84:5061    68.34.170.246:52296    CLOSE_WAIT      1908
TCP    192.100.100.84:5061    68.34.170.246:52297    CLOSE_WAIT      1908
TCP    192.100.100.84:5061    68.34.170.246:53570    CLOSE_WAIT      1908
TCP    192.100.100.85:5061    0.0.0.0:0              LISTENING       1908
TCP    192.100.100.85:5062    0.0.0.0:0              LISTENING       1844
TCP    192.100.100.85:5062    192.100.100.83:53701   ESTABLISHED     1844
TCP    192.100.100.85:5062    192.100.100.83:53967   ESTABLISHED     1844
TCP    192.100.100.85:8057    0.0.0.0:0              LISTENING       1768
TCP    192.100.100.85:8057    192.100.100.83:56612   ESTABLISHED     1768
TCP    192.100.100.85:8057    192.100.100.83:56617   ESTABLISHED     1768
TCP    192.100.100.85:8057    192.100.100.83:56618   ESTABLISHED     1768
TCP    192.100.100.85:8057    192.100.100.83:56619   ESTABLISHED     1768
TCP    192.100.100.85:8057    192.100.100.83:56620   ESTABLISHED     1768
TCP    192.100.100.85:8057    192.100.100.83:56628   ESTABLISHED     1768
TCP    192.100.100.85:8057    192.100.100.83:56629   ESTABLISHED     1768
TCP    192.100.100.85:8057    192.100.100.83:56670   ESTABLISHED     1768
TCP    192.100.100.85:57577   192.100.100.146:5357   TIME_WAIT       0
TCP    192.100.100.85:57579   192.100.100.175:5357   TIME_WAIT       0
TCP    192.100.100.85:57583   192.100.100.159:5357   TIME_WAIT       0
TCP    192.100.100.85:57584   192.100.100.147:5357   TIME_WAIT       0
TCP    192.100.100.85:57585   192.100.100.242:3911   TIME_WAIT       0
TCP    [::]:80                [::]:0                 LISTENING
4
TCP    [::]:135               [::]:0                 LISTENING
756
TCP    [::]:443               [::]:0                 LISTENING
4
TCP    [::]:445               [::]:0                 LISTENING
4
TCP    [::]:3389              [::]:0                 LISTENING
2804
TCP    [::]:4443              [::]:0                 LISTENING
4
TCP    [::]:47001             [::]:0                 LISTENING
4
TCP    [::]:49152             [::]:0                 LISTENING
468
TCP    [::]:49153             [::]:0                 LISTENING
844
TCP    [::]:49154             [::]:0                 LISTENING
896
TCP    [::]:49338             [::]:0                 LISTENING
1400
TCP    [::]:56483             [::]:0                 LISTENING
572
TCP    [::]:56966             [::]:0                 LISTENING
564
TCP    [::]:56967             [::]:0                 LISTENING
2824
TCP    [2002:c064:6454::c064:6454]:4443 [2002:c064:6453::c064:6453]:54033 ESTABLISHED     4
TCP    [2002:c064:6454::c064:6454]:57581 [2002:c064:64ab::c064:64ab]:445 ESTABLISHED     4
TCP    [2002:c064:6454::c064:6454]:59957 [2002:c064:640c::c064:640c]:445 ESTABLISHED     4
UDP    0.0.0.0:123            *:*
948
UDP    0.0.0.0:500            *:*
896
UDP    0.0.0.0:1434           *:*
1976
UDP    0.0.0.0:4500           *:*
896
UDP    0.0.0.0:5355           *:*
140
UDP    127.0.0.1:51664        *:*
1172
UDP    127.0.0.1:56155        *:*
2924
UDP    127.0.0.1:59005        *:*
964
UDP    127.0.0.1:62503        *:*
1680
UDP    127.0.0.1:62786        *:*
572
UDP    127.0.0.1:62788        *:*
140
UDP    127.0.0.1:64531        *:*
896
UDP    127.0.0.1:65160        *:*
1844
UDP    192.100.100.84:137     *:*
4
UDP    192.100.100.84:138     *:*
4
UDP    [::]:123               *:*
948
UDP    [::]:500               *:*
896
UDP    [::]:1434              *:*
1976
UDP    [::]:4500              *:*
896
UDP    [::]:5355              *:*
140

JSTL stops working when I add a servlet

Can anyone help me?
My JSTL tags stop working when I add WEB.XML to WEB-INF folder in Tomcat 5.
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I quickly threw this code together to try to describe
by problem. I didn't think it was prudent to post all
the code in my web app. (servlet happens to be the
context path, and I just threw the tag in to duplicate
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It's a difficult call, because posting too much will scare people off, too. (I know I don't want to read your entire app.)
The log doesn't really help.Neither does this post.
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HT4864 My outgoing email as stopped working when using Outlook for mac 2011. Any suggestions?

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I called Microsoft to fix my problem...for those maybe having the same issue, I was told by the Tech to use this outgoing server setting - p06-smtp.mail.me.com
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Hi,
I am planning to deploy 1 Lync Edge Server but the problem is we only have one public IP address. This will be deployed on a Hyper-V VM with 2 NICS installed. All tutorials I have read pertains on having 3 public IP address. The purpose is only to try Skype
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Thanks,
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Hi Ed,
Although it is best practice to use 3 public IPs for your Edge deployment, you can indeed use just a single public IP - this is a completely supported configuration.
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Deploy Lync Edge Server.

Hi,
We have a Lync 2013 Server. We're plan to deploy a Lync Edge Server. I just read some articles about the depoyment. I'm wondering why Lync Edge Server cannot be installed on a server with one NIC. We've 1 firewall, configured with a interface in the
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Hi,
You're Lync 2013 Edge server requires two network interfaces, each residing on a different subnet - this part isn't debatable and is required in order to be a supported deployment (much less have it actually work). However its not uncommon to come across
your scenario.
As you only have a single firewall, your two options are;
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2.) External interface of the Edge server in the existing DMZ subnet, and then create a second DMZ subnet to put the internal interface of the Edge server in. You would have to create an interface on your existing firewall in this subnet as well, essentially
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on the outer firewall, and the internal interface of the edge server is on the same subnet as the external facing adaptor of the inner firewall. This is the preferred solution, but not achievable in your current setup without the introduction of additional
components.
Of the two options applicable to you (1and2), option 2 is preferred. Both are considered less secure than option 3 from a security perspective as there is only a single firewall to breach, where as option three has layered security.
This is a very common scenario for smaller organisations - feel free to ask any further questions.
Kind regards
Ben
Note: If you find a post informative, please mark it so using the arrow to the left. If it answers a question you've asked, please mark the thread as answered to aid others when they're looking for solutions to similar problems or queries.
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My iMessage stopped working when I did the latest update on my phone. I have literally tried everything to reset it. I am currently not in the US, but my iMessage has always worked when I was in wifi and my phone is still activated.

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Any reason not to put Lync Edge server on the same server that runs Web Application Proxy?

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Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer".
SWC Unified Communications

Message: itunes has stopped working when I connect ipod touch-windows 7

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possible from external clients. The ms. connectivity analyser says: "The The certificate couldn't be validated because SSL negotiation wasn't successful". Connections from mobile clients through reverse proxy are no problem also internal clients
have no issue ( they both don’t use the edge but proxy ). So i assume there's someting wrong with the certificate implementation on the Edge server, however ive tested it with the RUCT from Curtis Johnstone, and the certificate seems to be OK. Also in the
Lync Server Deployment Wizard the certificates seem to be OK. In the computers personal certificate store the are only the two necessary certificates ( internal and external) also intermediate certificates are installed. Routing ( default gateway on external
interface ) is working fine. So I think I'm out of options, any ideas?
Tnx,
Guido

Please check the DNS records for sip.ipabo.nl and webconf.ipabo.nl are created on external DNS server.
Please check you can telnet Lync Edge Access service FQDN on 443 port.
Check the automatic configuration for remote access is configured correctly or you can try to sign in manually.
Follow the steps in blog blow to test your Edge Server:
http://blogs.technet.com/b/nexthop/archive/2011/12/07/useful-tips-for-testing-your-lync-edge-server.aspx
Lisa Zheng
TechNet Community Support

Outbound Calls stop working when Lync Edge server is offline

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