Polycom CX700 cannot sign in with Lync 2013

-
this is a fast published article

Warning:


DO NOT UPGRADE TANJAY/ CX700 TO THE LATEST FIRMWARE 4397/4411.

Your lync phone will be partially not able signing in with Lync 2013


more info an fix will be provided soon
Reference:
http://blog.schertz.name/2011/01/updating-lync-phone-edition-devices/


SOLUTION:
As I promised, here it come...

The bug is related to some undocumented processes for the so called old OCS Phone, which are the Tanjay/ cx700.

this login process and firmware update process is totally different from other Lync phones.
What do I have to do:

TANJAY:
Update the phone to the newest firmware, but be aware, the phone holds the version before 4397.

LYNC environment:

Phone Login:
-  the OCS Phone Edt, will NOT login via sip.<domain fqdn>, it will only us the sipinternal.<domain fqdn>.
Therefore ensure, the SIPINTERNAL FQDN is on the local certificate.
Our findings have shown, Tanjay will still query the sip.<domain fqdn>, will also make an TLS connection, but than it drops the communication. We don't know why. The response from PGI was, possible MS wanna get rid of this old OCS phones.

Phone Update:
- as we know, the update process is identified with ucupdate-r2.<domain fqdn> either via http or https, but here the old OCS environment only allowed https, this is now important to know for Tanjay firmware updates. It only can make updates via https. Therefor ensure you also put ucupdate-r2.<domain fqdn> as SAN into your local FE certificates too.


Comments

Post a Comment

Popular posts from this blog

Cannot join external Lync Meeting: Lync Edge Server Single IP Address (Lync Edge Server Single IP Web Conferenceing Problem)

-
Image
Lync Edge Server FQDN and IP PORTS (Version 1.2, Update 26.11.2014) As we all know, we can configure Lync Edge Server in several way. 1) Single Edge Server with a SINGLE IP ADDRESS 2) Single Edge Server with MULTIPLE IP ADDRESSES (3x IPs) 3) Multiple Edge Server in a Pool, with MULTIPLE IP ADDRESSES (Zx 3 IPs) Regardless what we are going to configure, there are common / well-known TCP Port necessary making Lync work, which are: Access: Port: 443 and 5061 Conferencing: Port: 443 and (444) AV: Port: 443 (I have not listed other ports, e.g. STUN or the dynamic port range. This is not required for the topic discussed here) External FQDN with single IP address: What can we see here? If we are going to choose a single IP address, we would have TCP Port overlapping. Therefore the only way avoiding this is assigning other ports. Additionally we will also see and are reminded that Lync highly depends on DNS. If we have single IP, we must have use single, unique FQDN fo
Read more

MFA with Guest Access and different tenants settings

-
Image
There is an update regarding MFA Multi Factor Authentication. If you are guest with a different Tenant, the MFA Settings are now reflecting the settings of all tenants in a different way. Each MFA setting is reflected and you can setup your MFA device as per tenant and the admin settings allow. Login to your Profile in Office 365/ Azure AD: https://account.activedirectory.windowsazure.com/r/#/profile or https://myapps.microsoft.com Go to your PROFILE: Sign in to https://myapps.microsoft.com Select your account name in the top right, then select profile. Select Additional security verification. If might be happen, your admin hast configured MFA, so you wouldn't see this menu. Simply switch the tenant to the guest tenant where you need to configure MFA. Once you go back to your profile and you will find the MFA device and other settings a usual:
Read more

Skype for Business, Lync and Exchange Web Services (EWS) and different DNS Domains- Exchange crawling e.g. for presence

-
Image
Hi all, (This is an updated version 2.2: 09 .07.201 5 ) This blog entry is valid for Lync 2010, Lync 2013 and Skype for Business Server. Generally, I'll write a new blog article, since the conversion history over multiple device and other service have change with Skype for Business 2015 Server. Once this written, I post the link here. there is always confusion in how Lync is crawling Exchange Web Services (EWS). Generally it is necessary to understand how DNS must be implemented: Just remember, identify if you have DNS Split configuration, different internal and external DNS names and what are your SMTP and SIP Domains. Very often you find in Lync/ Exchange deployments an issue, where the Lync configuration show up with empty: EWS Internal URL EWS External URL and EWS Information = EWS not deployed Therefor Exchange Web Service are not connected deployed and several Lync Integration Features are not working, e.g. Presence Information based on your Outlook Calendar.
Read more