Background – Polycom 1725-31424-001 User Manual

Page 21

Upgrading Polycom CX700 Phone within a Microsoft Office Communications Server 2007 R2 Environment

http://POOL01.contoso.com/DeviceUpdateFiles_Int/UCPhone/Polycom/CX

700/A/ENU/1.0.522.101/CPE

+ Element: XmlElement: -

https://ocsrp.fabrikam.com/DeviceUpdateFiles_Ext/UCPhone/Polycom/C

X700/A/ENU/1.0.522.101/CPE

Scenario

The upgrade instructions in this document assume the following conditions:

• Starting state for a Polycom CX700 phone is software release 1.0.199.123

• Test account is OCSTest1 (for example, [email protected])

• Pool running Device Update Service is pool01.contoso.com

• Test Device is Tanjay01

• Domain Controller is dc01.contoso.com

• DHCP / DNS / WINS / Certificate Authority / NTP run on the domain

controller

• There is an internal DNS zone called fabrikam.com (i.e., the

) created manually and populated with autodiscover
(pointed to Exchange UM) and sip A records. It also contains
_sipinternaltls._tcp and _ntp._udp SRV records.

• There is an Active Directory DNS zone called contoso.com (i.e., the

) and created automatically during setup. It will contain
the pool and ucupdates-r2 A records at a minimum. It also hosts all
machine accounts.

• There are corresponding external DNS zones for contoso.com and

fabrikam.com.

• There is a reverse proxy that is publishing the pool locations for

DeviceUpdateFiles_Ext and RequestHandlerExt (refer to

• Software release 1.0.522.101 is set to “Approved” and software release

3.5.6907.35 is set to “Pending”. To upgrade from 1.0.522.101 to 3.5.6907.35,
the phones are added to the Test Devices tab to limit the upgrade to just

the targeted devices.

Background

When trying to figure out why one or more steps in the upgrade process are
not working, it is helpful to know how it is supposed to work. This section
provides a brief explanation of the components involved and how a Polycom

CX700 phone interacts with DNS, Pool, Web Components service and the
Device Update service.