How do I get my analog phones that are attached to a Cisco SPA112 or SPA122 to ring?
Phones connected to an SPA112 or SPA122 that do not ring can be resolved by two methods, ring voltage and change in the waveform type. The ring voltage is dependent on the voltage of the resident which the user resides. The waveform can be changed from trapezoid to sinusoidal or sinusoidal to trapezoid; which are set due to the session initiation protocol (SIP).
This document explains how to troubleshoot a SPA122 and a SPA 122 when the phones connected to them fail to ring out.
Applicable Devices
SPA112
SPA122
Troubleshoot Phones That Do Not Ring
The problem could be solved by two methods. or SPA122
Ring Voltage
Step 1. Log into the Phone Adapter Configuration Utility and choose Voice > Regional. The Regional page opens:
Under the Ring and Call Waiting Tone Spec area:
Step 2. Check if the Ring Voltage value entered in the Ring Voltage field is in accordance with the country settings. The ring voltage is a digital sound file that plays when an incoming call is on the phone line. If not, enter the appropriate ring voltage value for the country in the Ring Voltage field. For example, the typical ring voltage for the United States of America is 90V at 20Hz. This voltage may vary due to the distance to a Central Office, line condition etc.
Note: As this is attempted, be sure that the value of Ring Voltage does not exceed the specific value set by your country.
For example the value should not reach greater than 90V in the case of the United States of America.
Step 3. Click Submit to save the configuration.
Change the Waveform Type
Step 1. Log into the Phone Adapter Configuration Utility and choose Voice > Regional. The Regional page opens:
Under the Ring and Call Waiting Tone Spec area:
Step 2. From the Ring Voltage drop-down list, choose an option between Sinusoidal or Trapezoid. Change the waveform type from Sinusoidal to Trapezoid or Trapezoid to Sinusoidal in the Ring Waveform field could also solve the problem. These waveforms are to be set due to the SIP provider.
Step 3. Click Submit to save the configuration.