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Pay special attention to the following fields:

SIP Profile Field

Description

IP Address

This is the IP address where NSC will listen for calls

Transport

Most implementations will want to leave the default “UDP+TCP”, this means SIP packets will be accepted in both UDP and TCP protocols.

Port

Most of the time you will want to leave the default 5060 port.

Authenticate Calls

This means any SIP calls (INVITE requests) will be accepted and not challenged.

Routing Plan:

You have to choose the routing plan you created before ()

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Info

Security Note: If you Disable Authenticate Calls in the SBC, take care that the remote SIP UA, eg: IP IPBX has

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authentication enabled.

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Info

Security Note: if you are exposing a SIP Profile to the public internet, you may want to change its Port to something different than default 5060, in order to reduce attach exposure. 
Many malicious tools scan for for 5060 to find SIP systems connected to the internet. Even though Sangoma SBC comes with several protection mechanisms to detect scans, you will be better off on the internet by using a different port.

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Info

The contextual help on each field will give you information about what each field in the SIP profile does.

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You can now proceed to optionally bind one or more domains to this SIP profile. 

When you bind a domain to a SIP profile you are attaching all the user directory of each domain bound for this SIP profile to be able to accept registrations and/or perform authentication of SIP INVITE messages based on the user/password information stored in the domain user directory (or performed via authentication forwarded according to the domain configuration).*

Info

Note that in order to perform SIP authentication you have to set the “Authenticate Calls” parameter to “Enable”.

To bind a domain to a SIP profile simply click “Bind” in the SIP profile modification page:

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