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AUTH2cclemetsonUserResourceIdentifier{userKey=8a00a0c85b2726c2015b58aa779d0003, userName='null'}
AUTH1amiddlebrookUserResourceIdentifier{userKey=8a00a0c857f0393d015845e3e4d4000f, userName='null'}
JIRAIDAUTHSYM-24704
REV5amiddlebrookUserResourceIdentifier{userKey=8a00a0c857f0393d015845e3e4d4000f, userName='null'}
REV6bscogginsUserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cd5909df, userName='null'}
REV3aacharjyaUserResourceIdentifier{userKey=8a00a0c856ed5c6701572cb23680000b, userName='null'}
REV1plessisaUserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cc5207f0, userName='null'}

 

This section describes using Connectivity Check to verify inbound and outbound service requirements for Cloud Connector Edition (CCE) and to check connectivity for interfacing with Microsoft Teams Direct Routing.

...

The following table describes the services for which Connectivity Check verifies port readiness and the format for results.

 

Div
classpdf6pttext

Caption
0Table
1Connectivity Check Results
Service and ProtocolPortCCETeams
Direct
Routing		DescriptionConnectivity Check Results
Inbound
SIP/MTLS (TCP)5061(tick)Image Modified Handles signaling for voice communications 
STUN (TCP)443(tick)Image Modified STUN/TURN negotiation of candidates 
STUN (UDP)3478(tick)Image Modified Determines the version of the Edge Server with which the
Skype server is communicating		 
SIP/TLS (TCP)5061 (tick)Image ModifiedHandles signaling for voice communications; primary and secondary server IP addresses are hard-coded. 
RTP (UDP)16384 - 17584 (tick)Image ModifiedHandles media for voice communications 
Outbound
DNS (UDP/TCP)53(tick)Image Modified(tick)Image Modified

For the service that resolves the Public FQDN for the Microsoft Signaling Server, the Connectivity Check populates a default destination from the Host Name and Domain Name attributes in Host Information (that is, Web UI's Settings > System > Node-Level Settings). The tool opens the UDP socket and sends a homemade DNS packet.

If the remote server responds with a DNS response packet the port is reported as open. Otherwise, the port is reported as closed.
NTP (UDP)123 (tick)Image ModifiedService to support timestamps in certificate usage 
HTTP (TCP)80(tick)Image Modified 

Certificate revocation check and Certificate Revocation
List (CRL) retrieval

The host field is filled by default with the FQDN found in the SBC certificate, under the attribute: CRL Distribution Point.

 
RTP (UDP)49152-65535 (tick)Image ModifiedHandles media for voice communications 
SIP/TLS (TCP)5061 (tick)Image Modified

Handles signaling for voice communications; primary and secondary server IP addresses are hard-coded.

 

For Teams Direct Routing, the SIP target can be the Microsoft SIP signaling server; Connectivity Check routes to: sip.pstnhub.microsoft.com,

 sip2

 sip2.pstnhub.microsoft.com,

 sip3

 sip3.pstnhub.microsoft.com.

 
STUN (TCP)443(tick)Image Modified For the service handling STUN/TURN negotiation of candidates, the Connectivity Check opens a UDP socket and sends a homemade STUN packet.If the remote server does not respond with a STUN error packet, the port is reported as closed. The remote peer is the Microsoft Cloud Edge Server and the STUN protocol determines the Public IP address.
STUN (UDP)3748(tick)Image Modified 

For the STUN service that determines the version of the Edge Server with which the Skype server is communicating, Connectivity Check populates a default destination from from the Host Name and Domain Name attributes in Host Information (that is, Web UI's Settings > System > Node-Level Settings). The tool opens the UDP socket and sends a homemade DNS packet.

If the remote server responds with a DNS response packet the port is reported as open. Otherwise the port is reported as closed.
SIP/MTLS (TCP)5061(tick)Image Modified 

Service to resolve Microsoft Signaling Server Public FQDN

For CCE, the Connectivity Check routes to sip.YourSbcDomain

 

 

 

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