SIP VoIP Configuration

If you know the IP address of the other VoIP device, and you are not behind a firewall, and you can ping the other device, you can likely make SIP VoIP calls directly between most VoIP devices. No server registration is required.

Preface

This will help you configure your device so it correctly register with our servers. This will allow you to dial by call sign and/or assigned phone numbers. Having your device registered in a server also makes it easier when you are behind a firewall.

Pre-Configuration

To register your call sign, send an email to netops@nmhamwan.net

After your call sign is provisioned we will send you an email with registration information and the "secret" to be used with your call sign to register your device in the servers.

Configuration Steps

Always enter your call sign in lower case.

These configuration is based on this Client Node Configuration Any other client configuration and/or any firewall might compromise the functionality.

Device Configuration

Below are some configurations for devices we currently use.

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Grandstream GXP 2000 & GXP 2020

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Configure "Account1"

   Account Active: Yes
   Account Name: Whatever you would like others to see when you call them.
   SIP Server: nmhamwan.net
   Outbound Proxy: sip.nmhamwan.net
   SIP User ID: callsign
   Authenticate ID: callsign
   Authenticate Password: secret
   Name: Whatever you would like others to see when you call them.

   Use DNS SRV: Yes
   User ID is phone number: No
   SIP Registration: Yes
   Unregister on Reboot: Yes
   Register Expiration: 10
   Local SIP Port: 5060
   SIP T1 Timeout: 1 sec
   SIP T2 Interval: 4 sec
   NAT Traversal (STUN): No, but send keep-alive
   Turn off speaker on remote disconnect: Yes

   Make sure Send DTMF: "in audio" is checked. Uncheck any other DTMF options.

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MicroSIP

[1]

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Add Account

   Account Name: Whatever you would like others to see when you call them.
   SIP Server: sip.nmhamwan.net
   Username: callsign
   Domain: nmhamwan.net
   Login: callsign
   Password: secret

Configure Settings

   Nameserver: 44.30.244.1, 44.30.245.1 
   DNS SRV: Checked 
   DTMF Method: In-Band

Post-Configuration

From all VoIP devices you can just dial the extension number using the numeric keypad.

With a soft VoIP phone, like MicroSIP, you can using your QWERTY keyboard and call like this

callsign@nmhamwan.net

or if the client allows, directly like this

callsign

For both types of VoIP devices

You can save an extension number or a callsign as a shortcut.

Directory

N5HC

• 7110@nmhamwan.net
• 81010@nmhamwan.net
• n5hc@nmhamwan.net
• 7111@nmhamwan.net
• 81011@nmhamwan.net
• n5hc-1@nmhamwan.net
• 7112@nmhamwan.net
• 81012@nmhamwan.net
• n5hc-2@nmhamwan.net

W5BI

• 7120@nmhamwan.net
• 81020@nmhamwan.net
• w5bi@nmhamwan.net
• 7121@nmhamwan.net
• 81021@nmhamwan.net
• w5bi-1@nmhamwan.net
• 7122@nmhamwan.net
• 81022@nmhamwan.net
• w5bi-2@nmhamwan.net
• 7123@nmhamwan.net
• 81023@nmhamwan.net
• w5bi-3@nmhamwan.net

W5LMM

• 7130@nmhamwan.net
• 81030@nmhamwan.net
• w5lmm@nmhamwan.net

NM5F

• 7140@nmhamwan.net
• 81040@nmhamwan.net
• nm5f@nmhamwan.net