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hi all,

i have installed Lync 2010 with edge.

A/V:

when calling

   internal user to internal - works
internal to external - the Session is established. internal user can hear an external user's voice but an external user - can't.
external to internal - not works.

i fined this error:

DNS resolution failed for the external SIP server address sip.mydomain.com retrieved during server discovery. Verify your topology configuration or contact your support team.

but nslookup for sip.mydomain.com   has a result.

can any one help me.

Lekso
Friday, December 12, 2014 1:12 PM

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Find the DNS requirements for Lync 2010 and also test remote connectivity with Microsoft Remote connectivity Analyzer.

http://designinglync.blogspot.com/2011/04/dns-in-lync-server-2010.html

http://lyncdude.com/2013/08/11/understanding-lync-dns-records-and-autoconfiguration/

https://testconnectivity.microsoft.com/

Tek-Nerd
- Proposed as answer by Eason Huang Monday, December 15, 2014 7:52 AM
- Marked as answer by Lekso Sulkhanishvili Monday, December 15, 2014 9:23 AM
Friday, December 12, 2014 2:34 PM
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Hi,

There may be something wrong with the configuration of Edge Server. You can do the following checkpoints:

As Tek-Nerd said above, please double check DNS configuration for Edge Server.
Also please double check the ports for both Edge Server external and internal interface (for external interface: A/V/STUN,MSTURN/TCP/443, A/V/STUN,MSTURN/UDP/3478 and so on):

More details: http://technet.microsoft.com/en-us/library/gg425891.aspx

Best Regards,
Eason Huang

Eason Huang
TechNet Community Support
- Marked as answer by Lekso Sulkhanishvili Monday, December 15, 2014 9:33 AM
- Edited by Eason Huang Tuesday, December 16, 2014 1:39 AM
Monday, December 15, 2014 8:41 AM
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Yes, You need Reverse Proxy server to enable mobility.
Tek-Nerd
- Marked as answer by Lekso Sulkhanishvili Monday, January 26, 2015 11:47 AM
Tuesday, December 16, 2014 5:31 PM
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If I make PAT 443 to 4443 and 80 to 8080
- Marked as answer by Lekso Sulkhanishvili Monday, January 26, 2015 11:47 AM
Friday, December 19, 2014 5:34 AM
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hi Tek-Nerd,

I have installed Cisco router and I did PAT 443 to 4443 and 80 to 8080

do I need to install reverse proxy yet?

Lekso
- Marked as answer by Lekso Sulkhanishvili Monday, January 26, 2015 11:47 AM
Tuesday, December 30, 2014 2:25 PM

All replies

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Find the DNS requirements for Lync 2010 and also test remote connectivity with Microsoft Remote connectivity Analyzer.

http://designinglync.blogspot.com/2011/04/dns-in-lync-server-2010.html

http://lyncdude.com/2013/08/11/understanding-lync-dns-records-and-autoconfiguration/

https://testconnectivity.microsoft.com/

Tek-Nerd
- Proposed as answer by Eason Huang Monday, December 15, 2014 7:52 AM
- Marked as answer by Lekso Sulkhanishvili Monday, December 15, 2014 9:23 AM
Friday, December 12, 2014 2:34 PM
0

Sign in to vote
Hi,

There may be something wrong with the configuration of Edge Server. You can do the following checkpoints:

As Tek-Nerd said above, please double check DNS configuration for Edge Server.
Also please double check the ports for both Edge Server external and internal interface (for external interface: A/V/STUN,MSTURN/TCP/443, A/V/STUN,MSTURN/UDP/3478 and so on):

More details: http://technet.microsoft.com/en-us/library/gg425891.aspx

Best Regards,
Eason Huang

Eason Huang
TechNet Community Support
- Marked as answer by Lekso Sulkhanishvili Monday, December 15, 2014 9:33 AM
- Edited by Eason Huang Tuesday, December 16, 2014 1:39 AM
Monday, December 15, 2014 8:41 AM
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Hi Tek-Nerd,

is urgently necessary to have a proxy-server when deploying a Lync 2010 for internal- external and for mobility services?
- Edited by Lekso Sulkhanishvili Monday, December 15, 2014 9:21 AM
Monday, December 15, 2014 9:21 AM
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Yes, You need Reverse Proxy server to enable mobility.
Tek-Nerd
- Marked as answer by Lekso Sulkhanishvili Monday, January 26, 2015 11:47 AM
Tuesday, December 16, 2014 5:31 PM
0

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If I make PAT 443 to 4443 and 80 to 8080
- Marked as answer by Lekso Sulkhanishvili Monday, January 26, 2015 11:47 AM
Friday, December 19, 2014 5:34 AM
0

Sign in to vote
hi Tek-Nerd,

I have installed Cisco router and I did PAT 443 to 4443 and 80 to 8080

do I need to install reverse proxy yet?

Lekso
- Marked as answer by Lekso Sulkhanishvili Monday, January 26, 2015 11:47 AM
Tuesday, December 30, 2014 2:25 PM

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