<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: arial,helvetica,sans-serif; font-size: 10pt; color: #000000'><font face="arial, helvetica, sans-serif"><span style="font-size: 10pt;">"</span><span style="font-size: 13.3333px;">The endpoints need no </span></font><span style="font-size: 13.3333px; font-family: arial, helvetica, sans-serif;">configuration or support."</span><div><font face="arial, helvetica, sans-serif"><span style="font-size: 13.3333px;"><br></span></font></div><div><font face="arial, helvetica, sans-serif"><span style="font-size: 13.3333px;">Okay, I guess that was my chief concern. If it's just handled within the RTP stream, then I'll move forward with Metaswitch.<br></span></font><br><div style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 10pt;"><span name="x"></span><br><br>-----<br>Mike Hammett<br>Intelligent Computing Solutions<br>http://www.ics-il.com<br><br><br><br>Midwest Internet Exchange<br>http://www.midwest-ix.com<br><br><span name="x"></span><br></div><br><hr id="zwchr" style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 10pt;"><div style="color: rgb(0, 0, 0); font-family: Helvetica, Arial, sans-serif; font-size: 12pt; font-weight: normal; font-style: normal; text-decoration: none;"><b>From: </b>"Jay Hennigan" <jay@west.net><br><b>To: </b>voiceops@voiceops.org<br><b>Sent: </b>Tuesday, March 15, 2022 1:35:16 PM<br><b>Subject: </b>Re: [VoiceOps] Test Numbers<br><br>On 3/15/22 06:51, Mike Hammett wrote:<br>> Our test equipment vendor (Exfo) has asked us about these capabilities, <br>> "milliwatt tone, quiet termination, or silent switchman." I don't know <br>> that I've seen the ability to configure those anywhere.<br>> <br>> How would I go about setting that up? I'm assuming that requires that my <br>> switch (Metaswitch) and endpoints (Zhone, Grandstream, Calix, Occam, and <br>> Innomedia) support them as well. I'm sure I can get platform-specific <br>> details from each of the vendors, but I'd like gain a bit of knowledge <br>> on that whole process before delving into vendor details.<br><br>The test numbers are a function of the switch. The endpoints need no <br>configuration or support. To the endpoints, the test numbers are simply <br>a dialable phone number like any other.<br><br>If Metaswitch doesn't have configurable options for milliwatt and silent <br>termination, an Asterisk or similar box can easily do so. This is very <br>lightweight and can run on a Raspberry Pi if needed.<br><br>The milliwatt is used to test for line loss and level and silent <br>termination for hybrid balance.<br><br>Essentially these are dialable numbers that in the first case answer <br>with a 1004 Hz tone sent at a level of one milliwatt and in the second <br>answer with silence matching the line impedance with return loss as high <br>as possible.<br><br>-- <br>Jay Hennigan - jay@west.net<br>Network Engineering - CCIE #7880<br>503 897-8550 - WB6RDV<br>_______________________________________________<br>VoiceOps mailing list<br>VoiceOps@voiceops.org<br>https://puck.nether.net/mailman/listinfo/voiceops<br></div><br></div></div></body></html>