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SIP Registrar Enable
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Check that SIP Registrar Enable is selected. This setting is automatically disabled on systems with no SIP extensions configured.
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Auto-create Extn/User
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Default = Off
When this option is selected, the IP Office automatically creates user and SIP extension entries in its configuration based on SIP extension registration.
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Leaving this settings enabled is strongly deprecated. The system automatically disables the settings 24-hours after it is enabled.
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Not Supported with WebLM Licensing: The auto-create extension/user options are not useable on systems using WebLM licensing.
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SIP Remote Extn Enable
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Default = Off
Currently remote SIP extension options are only supported for Avaya SIP phones and client applications. Remote connection is not supported for third-party SIP telephones.
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SIP Domain Name
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Default = Blank
This value is used by SIP endpoints for registration with the system. If left blank, registration uses the LAN IP address. The entry should match the domain suffix part of the SIP Registrar FQDN below, for example example.com.
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For Avaya SIP telephones supported for resilience, this value must be common to all systems in the network.
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If you are using TLS, this value needs to be included in the security certificates applied to the IP Office and, if used, separate HTTP file server.
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SIP Registrar FQDN
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Default = Blank
This is the fully-qualified domain name for the system, for example ipoffice.example.com, to which the SIP endpoint should send its registration and other requests. This address must be resolvable by DNS back to the IP address of the system.
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For Avaya Vantage™ and Avaya Workplace Client, this field must be set.
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For resilience, this value, if set on the failover server, is the value passed to Avaya Vantage™ and Avaya Workplace Client as the address for resilience. If not set, the system's IP address is sent to those clients as the failover address instead.
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Layer 4 Protocol
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Default = Both TCP & UDP
These fields set the transport protocol for SIP traffic between the IP Office and SIP extensions.
Important:
Do not enable a protocol unless it is intended to be used. Many phones only use the first enabled protocol that they support in the order TLS, TCP, UDP. They will not fallback to another enabled protocol if problems are encountered in the first protocol. For example, if TLS is enabled, that is indicated to phones through the IP Office's auto-generated phone settings files. The phones will then attempt to use TLS (for example requesting certificates etc) and will not fallback to TCP or UDP even if TLS operation is not fully or correctly configured.
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UDP Port
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Default = Enabled/5060
Select whether to support UDP for SIP and, if enabled, the port on which the system listens for extensions. The default is 5060.
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TCP Port
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Default = Enabled/5060
Select whether to support TCP for SIP and, if enabled, the port on which the system listens for extensions. The default is 5060.
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TLS Port
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Default = Disabled/5061
Select whether to support TLS for SIP and, if enabled, the port on which the system listens for extensions. The default is 5061.
This option requires server certification to be applied to the IP Office system and to the file server. Do not enable TLS and connect phones until the correct server certification has been complete.
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Challenge Expiry Time
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Default = 10 seconds
The challenge expiry time is used during SIP extension registration. When a telephone registers, the system sends back a challenge and waits for a response. If the response is not received within this timeout the registration fails.
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