Hi
@rollyt,
Not knowing Simwood I am assuming they are a SIP provider. That being the case there should not be any specific configuration required to get them to work.
Ensure that
1. You have your gateway configured (which will be the details that Simwood will have provided to you for the trunk). If Simwood uses IP Based authentication make sure that the username and password fields are blank and that Register is set to false.
2. The Domain ACL has the full CIDR for Simwoods gateway so that you can receive inbound calls
3. You have created extensions that you can register to using a soft client or physical phone
4. The Destination is set based on the public phone number you have been provided from Simwood. You may need to do some tests with sngrep, "sudo sngrep -c" to view the sip messages of invites only, to ensure you have the correct dial pattern configured as Simwood may be using e164 or 0NSN or some other configuration.
5. You have the correct Outbound routes configured to match the dial pattern that Simwood is expecting. You may need to do some manipulation for the regex to ensure the number flows through correctly.
If all of these steps are followed you should be able to get the gateway registered, have a softphone or physical phone registered, be able to receive inbound calls from Simwood and make outbound calls to Simwood.
If you have specific questions then please provide the details.
Ian