Upgrading Polycom CX700 Phone within a Microsoft Office Communications Server 2007 R2 Environment
DNS | Type |
| Name | Port | IP Address / FQDN |
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Internal Zone | A |
| sip.<SIPDomain> | N/A | IP/VIP of Pool running Device |
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<SIPDomain> |
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| Update. |
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| A |
| autodiscover.<SIPDomain> | N/A | Internal IP/VIP of Exchange |
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| server running CAS role. Note: |
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| this assumes SIP URI matches |
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| the user’s Primary SMTP |
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| address in Exchange. |
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| SRV |
| _sipinternaltls._tcp.<SIPDomain> | 5061 | FQDN of Pool containing user(s) |
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| signing into the OCPE device |
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| being upgraded. |
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| SRV |
| _ntp._udp.<SIPDomain> | 123 | time.windows.com or FQDN of |
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| internal or external time source |
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Internal Zone | A |
| N/A | IP/VIP of Pool running Device |
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<DHCPDomain> |
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| Update. |
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| A |
| poolName.<DHCPDomain> | N/A | IP/VIP of Pool running Device |
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| Update. |
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External Zone | A |
| sip.<SIPDomain> | N/A | External IP/VIP of Access Edge |
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<SIPDomain> |
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| server. |
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| A |
| autodiscover.<SIPDomain> | N/A | External IP/VIP of Exchange |
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| server running CAS role. Note: |
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| this assumes SIP URI matches |
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| the user’s Primary SMTP |
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| address in Exchange. |
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| A |
| reverseProxyFQDN.<SIPDomain> | N/A | IP of reverse proxy specified in |
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| the ExternalBaseURL WMI |
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| setting. |
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| SRV |
| _sip._tls.<SIPDomain> | 443 | FQDN of Access Edge server. |
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| SRV |
| _ntp._udp.<SIPDomain> | 123 | time.windows.com or FQDN of |
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| external time source |
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External Zone | A |
| N/A | IP of reverse proxy specified in |
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<DHCPDomain> |
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| the ExternalBaseURL WMI |
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| setting. |
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| Polycom CX700 phones running release 1.0.199.123 look for time.windows.com by |
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| default and use it if it's reachable. If not, they append <DHCPDomain> to |
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| time.windows.com and try again (e.g. time.windows.com.contoso.com). |
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| Polycom CX700 phones running 3.5.6907.35 use SRV records to locate a time |
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| source but also checks for a time.windows.com A record for reporting its time back |
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| to the pool (applies to 1.0.199.123 and 1.0.522.101 also). |
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