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<p class="MsoNormal">Hello,<o:p></o:p></p>
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<p class="MsoNormal">Date and time can be provided over analog lines as part of the caller-ID data burst (SDMF or MDMF). On an Adtran TA9xx, you can see the raw data by running “debug voice toneservices”.<o:p></o:p></p>
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<p class="MsoNormal">Regards,<o:p></o:p></p>
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<p class="MsoNormal">Ken Mix<o:p></o:p></p>
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<p class="MsoNormal"><b>From:</b> VoiceOps <voiceops-bounces@voiceops.org> <b>On Behalf Of
</b>Colton Conor<br>
<b>Sent:</b> Thursday, May 14, 2020 09:43<br>
<b>To:</b> VoiceOps <voiceops@voiceops.org><br>
<b>Subject:</b> [VoiceOps] Analog Phone Lines - Timesouce for PBX System<o:p></o:p></p>
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<p class="MsoNormal">We had a customer that had Frontier Analog phone lines going into their Panasonic TDA-50 PBX system. We recently ported the numbers from Frontier to our Broadsoft, and deployed a Poly OBI508 ATA onsite. We also replaced their router and
internet connection.<o:p></o:p></p>
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<p class="MsoNormal">Customer is complaining that their phones are displaying the wrong time. We explained to them that we did not mess with their phone system PBX only the input lines.<o:p></o:p></p>
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<p class="MsoNormal">My question is, do oldschool, onsite PBX systems, like a Panasonic TDA-50, use the analog FXS input lines from the provider (us) as a timing source? If so, what protocol is this, and where would be change it on the adapter? <o:p></o:p></p>
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<p class="MsoNormal">I would think most PBX systems are like computers, and would use NTP as the timing source. <o:p></o:p></p>
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