Deployment Guide for the Polycom CX700 IP Phone
When the Polycom CX700 phone connects to the Microsoft Office
Communications Server 2007 R2, it queries in the following order.
1.Hosts and port pointed to by these SRV records
—_sipinternaltls._tcp.<SIP domain>
—_sip._tls.<SIP domain>
—_sipinternal. tcp.<SIP domain>
2.sipinternal.<SIP domain>:5061
3.sipinternal.<SIP domain>:443
4.sip.<SIP domain>:5061
5.sip.<SIP domain>:443
6.sipexternal.<SIP domain>:5061
7.sipexternal.<SIP domain>:443
Exchange Server 2007 Autodiscover Service
Microsoft® Exchange Server 2007 includes a new Exchange service named the Autodiscover service. The Autodiscover service configures client computers that are running Microsoft® Office Outlook 2007. The Autodiscover service can also configure supported mobile devices. The Autodiscover service provides access to Exchange features for Outlook 2007 clients that are connected to an Exchange messaging environment. The Autodiscover service must be deployed and configured correctly for Outlook 2007 clients to automatically connect to Exchange features, such as the offline address book, the Availability service, and Unified Messaging (UM).
For more information, see the Exchange Server TechCenter topic How to Configure Exchange Services for the Autodiscover Service at http://go.microsoft.com/fwlink/?linkid=141087.
Retrieving Outlook Contacts, Call Logs, and Voice Mail
The Polycom CX700 phone retrieves Outlook contacts, call logs, and voice mails and displays them on the device. The Polycom CX700 phone does this by accessing the Exchange Server 2007 Client Access Server (CAS) and retrieving the information by using Exchange Web Services (EWS). The Polycom CX700 phone locates the Exchange Server 2007 CAS by using an A record that is in DNS. It uses the SMTP domain of the primary
https://<SMTP domain>/autodiscover/autodiscover.xml, https://autodiscover.<SMTP domain>/autodiscover/autodiscover.xml,
and http/ https redirect
4