IMPORTANT:
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Step 1
- Click on SIP Trunks
- Click Add SIP Trunk
- Select Generic from Country dropdown
- Select Generic SIP Trunk from Provider dropdown
- Input your Flowroute phone number in 11 digit format under Main Trunk Number (1NPANXXxxxx)
- Click OK
Step 2
- Enter an arbitrary name for the trunk
- Enter your preferred PoP registration URL (such as us-west-wa.sip.flowroute.com)
- Set whatever maximum number of simultaneous calls you desire
Step 3
- Under the Authentication section select Register/Account-based auth.
- Enter your tech prefix as the username
- Enter your SIP password for the Auth Password
Step 4
- Click on the DIDs tab
- Add any additional Flowroute DIDs you wish to receive calls on. Numbers should always be entered in the 11 digit format (1NPANXXxxxx)
- If you plan to use some numbers for the built-in 3cx fax server or conferencing server, you will need to enter the numbers you intend to use for those services in full E.164 format. (+1NPANXXxxxx)
Step 5
- Click on the Caller ID tab
- Enter your preferred outbound caller ID in 11 digit format (1NPANXXxxxx)
Step 6
- Click on the Options tab
- Ensure allow inbound, and outbound calls are selected
- Ensure that Supports Re-Invite is checked under Advanced
If your PBX is behind NAT, please ensure that the following options are set, and your Public IP is listed in the specified fields. If you are unsure if your PBX is behind NAT, please see your network administrator. If your ISP is providing dynamic IP, you will need to manually update these fields if your IP changes in the future. Failure to update the IP will result in no inbound audio on calls.
- Put Public IP in SIP VIA Header
- Select which IP to use in 'Contact' (SIP) and 'Connection'(SDP) fields
- Use This IP Address
- Click on the Inbound Parameters tab
- Set the following fields
- "CallerNum" caller's number (default: From->user) : P-Asserted Identity: User Part
- "CalledNum" number that has been dialed (default: To->user) : Request Line URI: User Part
- "CallerName" caller's name (default: From->display name) : P-Asserted Identity: Display Name