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VoIP Phones - Cisco SPA: Difference between revisions

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In short, set it up without echo cancellation, a-law only, no fax detect, no jitter adjust (set to high), UK line impedance, zero gain, etc.
In short, set it up without echo cancellation, a-law only, no fax detect, no jitter adjust (set to high), UK line impedance, zero gain, etc.


[[File:CiscoSPA-0-Status.png|300px|border]]
[[File:CiscoSPA-0-Status.png|400px|border]]


View of the 'quick settings'
View of the 'quick settings'


[[File:CiscoSPA-1-Line.png|border|300px]]
[[File:CiscoSPA-1-Line.png|border|400px]]


==Line Settings==
==Line Settings==
[[File:CiscoSPA-2-Line1.png|border|300px]]
[[File:CiscoSPA-2-Line1.png|border|400px]]


[[File:CiscoSPA-2-Line2.png|border|300px]]
[[File:CiscoSPA-2-Line2.png|border|400px]]


[[File:CiscoSPA-2-Line3.png|border|300px]]
[[File:CiscoSPA-2-Line3.png|border|400px]]


[[File:CiscoSPA-2-Line4.png|border|300px]]
[[File:CiscoSPA-2-Line4.png|border|400px]]


==SIP Settings==
==SIP Settings==
*Change RTP Packet Size: to 0.020 (which is 20ms)
*Change RTP Packet Size: to 0.020 (which is 20ms)


[[File:CiscoSPA-3-SIP1.png|border|300px]]
[[File:CiscoSPA-3-SIP1.png|border|400px]]


[[File:CiscoSPA-3-SIP2.png|border|300px]]
[[File:CiscoSPA-3-SIP2.png|border|400px]]


==Regional Settings==
==Regional Settings==

Revision as of 08:12, 8 August 2013

Cisco SPA120 & SPA122

  • This is similar to the older Linksys PAP2T ATA
  • Ensure software is updated, as this does help with the quality of the audio, we upgraded to 1.3.2-XU (014) Jul 2 2013
  • Blog post regarding this
  • Does seem to work will with the modems on Sky boxes to talk home on.

The screenshots here were taken from a SPA112 which was actually set up to give a Sky box a phone line to call home on.

In short, set it up without echo cancellation, a-law only, no fax detect, no jitter adjust (set to high), UK line impedance, zero gain, etc.

View of the 'quick settings'

Line Settings

SIP Settings

  • Change RTP Packet Size: to 0.020 (which is 20ms)

Regional Settings

  • Change FXS Output gain to -3 if modems have problems
  • Change the impedance setting to 370_630|310nF