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For extremely cheap telephone service using VoIP, I have this device. Instead of having my computer on all the time, I have this box hooked up to my network. I then have a regular telephone plugged into it. Once configured, everything is magic.

• I think I purchased mine from CanadaComputers - Cisco SPA122 on canadacomputers.com

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• forum

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• The default login

  • Can be customized.
  • I think it can be disabled so only a handset can be used.

• The user list

  • Includes password management.
  • Has a default guest account which should probably be deleted.

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VPN Passthrough:

• IPsec
• Point-to-Point Tunneling Protocol (PPTP) (insecure!)

• Layer 2 Tunneling Protocol (L2TP)

Other services which I don't use:

• Virtual LAN (VLAN)
• Cache Discovery Protocol (CDP)

• Link Layer Discovery Protocol (LLDP)

Cisco SPA122 setup with diamondcard.us ∞

The SPA122 is really overpowered for my needs. It's so very configurable that it's terribly confusing. Boy did it take me a lot of time to figure out how to get things working.. but once I did, it boiled down to these simple instructions..

https://web.archive.org/web/20150427115004/http://wiki.diamondcard.us/podwiki?page=TwinklePhone

Voice > Line 1

• Proxy[doesn't exist] and Registration
• Proxy: sip.diamondcard.us
• Outbound Proxy: sip.diamondcard.us

• Use Outbound Proxy: [yes]

• Display Name: ANYTHING

  • I recommend your telephone number.
• Password: YOUR_PASSWORD

• User ID: YOUR_USERID

• Preferred Codec: [G711a]

• Second Preferred Codec: [G711u]

I don't know how to enter this, but other stuff was ok by default:

DTMF: RFC2833

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maybe I don't need this sort of thing..

Use Auth ID: [yes] -- NOTE - switched to [no] even though Auth ID was blank for my success test.

Last updated 2020-06-14 at 05:17:20