Zoom Conference Room Connector DNS Changes: August 16, 2026

Scheduled Maintenance Report for Zoom

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Posted Jul 17, 2026 - 17:00 PDT

Scheduled

As part of ongoing service enhancements for CRC, we are replacing DNS records for SIP/H.323 endpoints in the São Paulo and Mexico regions. Legacy DNS records in some other regions that are no longer in use will be decommissioned.

Effective Date: August 16, 2026

To avoid service disruption, update your configurations before August 16, 2026.

DNS Record Updates:

São Paulo Region
Records to be replaced (A-Record and SRV-Record):
zmbr.br
_h323cs._tcp.zmbr.us
_sip._tcp.zmbr.us
_sips._tcp.zmbr.us
_sip._udp.zmbr.us
sp.zmbr.us
_h323cs._tcp.sp.zmbr.us
_sip._tcp.sp.zmbr.us
_sips._tcp.sp.zmbr.us
_sip._udp.sp.zmbr.us

New records (A-Record and SRV-Record):
sp.zoomcrc.com
_h323cs._tcp.sp.zoomcrc.com
_sip._tcp.sp.zoomcrc.com
_sips._tcp.sp.zoomcrc.com
_sip._udp.sp.zoomcrc.com

Mexico Region
Records to be replaced (A-Record and SRV-Record):
mx.zmvc.us
_h323cs._tcp.mx.zmvc.us
_sip._tcp.mx.zmvc.us
_sips._tcp.mx.zmvc.us
_sip._udp.mx.zmvc.us

New records (A-Record and SRV-Record):
qro.zoomcrc.com
_h323cs._tcp.qro.zoomcrc.com
_sip._tcp.qro.zoomcrc.com
_sips._tcp.qro.zoomcrc.com
_sip._udp.qro.zoomcrc.com

Action Required
Review your endpoint configurations and update any references from replaced DNS records to new DNS records before August 16, 2026 to ensure uninterrupted service.

Legacy Records to Be Removed
Hosted Zone: zmvc.us
A-Records:
lej.zmvc.us
hk.zmvc.us
mtls.mx.zmvc.us
cn.zmvc.us
de.zmvc.us
nl.zmvc.us
ca1.zmvc.us
ca2.zmvc.us
sg1.zmvc.us
us2.zmvc.us
us1.zmvc.us
br.zmvc.us
jp2.zmvc.us
in1.zmvc.us
in2.zmvc.us
jp1.zmvc.us

SRV-Records:
_h323cs._tcp.lej.zmvc.us
_sip._tcp.lej.zmvc.us
_sips._tcp.lej.zmvc.us
_sip._udp.lej.zmvc.us
_h323cs._tcp.hk.zmvc.us
_sip._tcp.hk.zmvc.us
_sips._tcp.hk.zmvc.us
_sip._udp.hk.zmvc.us
_h323cs._tcp.cn.zmvc.us
_sip._tcp.cn.zmvc.us
_sips._tcp.cn.zmvc.us
_sip._udp.cn.zmvc.us
_h323cs._tcp.de.zmvc.us
_sip._tcp.de.zmvc.us
_sips._tcp.de.zmvc.us
_sip._udp.de.zmvc.us
_h323cs._tcp.nl.zmvc.us
_sip._tcp.nl.zmvc.us
_sips._tcp.nl.zmvc.us
_sip._udp.nl.zmvc.us
_h323cs._tcp.ca1.zmvc.us
_sip._tcp.ca1.zmvc.us
_sips._tcp.ca1.zmvc.us
_sip._udp.ca1.zmvc.us
_h323cs._tcp.ca2.zmvc.us
_sip._tcp.ca2.zmvc.us
_sips._tcp.ca2.zmvc.us
_sip._udp.ca2.zmvc.us
_h323cs._tcp.sg1.zmvc.us
_sip._tcp.sg1.zmvc.us
_sips._tcp.sg1.zmvc.us
_sip._udp.sg1.zmvc.us
_h323cs._tcp.us2.zmvc.us
_sip._tcp.us2.zmvc.us
_sips._tcp.us2.zmvc.us
_sip._udp.us2.zmvc.us
_h323cs._tcp.us1.zmvc.us
_sip._tcp.us1.zmvc.us
_sips._tcp.us1.zmvc.us
_sip._udp.us1.zmvc.us
_h323cs._tcp.br.zmvc.us
_sip._tcp.br.zmvc.us
_sips._tcp.br.zmvc.us
_sip._udp.br.zmvc.us
_h323cs._tcp.jp2.zmvc.us
_sip._tcp.jp2.zmvc.us
_sips._tcp.jp2.zmvc.us
_sip._udp.jp2.zmvc.us
_h323cs._tcp.in1.zmvc.us
_sip._tcp.in1.zmvc.us
_sips._tcp.in1.zmvc.us
_sip._udp.in1.zmvc.us
_h323cs._tcp.in2.zmvc.us
_sip._tcp.in2.zmvc.us
_sips._tcp.in2.zmvc.us
_sip._udp.in2.zmvc.us
_h323cs._tcp.jp1.zmvc.us
_sip._tcp.jp1.zmvc.us
_sips._tcp.jp1.zmvc.us
_sip._udp.jp1.zmvc.us

Hosted Zone: zmjp.us
A Records:
sip.zmjp.us
udp2.zmjp.us
sip2.zmjp.us
vip2.zmjp.us
udp.zmjp.us

SRV Records:
_h323cs._tcp.vip2.zmjp.us
_sip._tcp.vip2.zmjp.us
_sips._tcp.vip2.zmjp.us
_sip._udp.vip2.zmjp.us
Hosted Zone: zmca.us

A Records:
sip.zmca.us
vip2.zmca.us
sip2.zmca.us
udp2.zmca.us
udp.zmca.us

SRV Records:
_h323cs._tcp.vip2.zmca.us
_sip._tcp.vip2.zmca.us
_sips._tcp.vip2.zmca.us
_sip._udp.vip2.zmca.us

Action Required
Review your CRC endpoint configurations. If you are still using any of these legacy DNS records, contact your Zoom TAM or Zoom Support before August 16, 2026 to ensure uninterrupted service.

Questions? Contact your Zoom TAM or Zoom Support.

Posted Jul 17, 2026 - 13:31 PDT

This scheduled maintenance affects: Zoom Meetings (Zoom Conference Room Connector).