<div dir="ltr">Hi Naresh,<div><br></div><div>You can use any CA as long as its root certificate is pre-installed on the devices that need to connect via MRA. Cisco recommends a public CA as most of the devices including the telepresence have the public CA root certificate pre-installed. But if you make sure to install the root certificate for your internal CA then you wont face any issues.</div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="color:rgb(0,0,0);font-family:Calibri,sans-serif;font-size:14px"><div style="font-family:Arial,sans-serif;font-size:12px">Regards,</div><div style="font-family:Arial,sans-serif;font-size:12px">Ankur</div></div></div></div></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On Sun, Sep 25, 2016 at 11:01 AM, naresh rathore <span dir="ltr"><<a href="mailto:nareh84@hotmail.com" target="_blank">nareh84@hotmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p>hi,</p>
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</p>
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<p>i want to confirm for Expressway C and E (8.7 or 8.8) can we use Microsoft as CA or Third party public CA is a must?</p>
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<p>Regards</p><span class="HOEnZb"><font color="#888888">
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<p>Naresh<br>
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