---
title: "Cisco Jabber - Registering With Internal DNS"
slug: "cisco-jabber-registering-with-internal-dns"
tags: ["calltower", "public"]
updated: 2026-09-18T14:18:36Z
published: 2026-09-18T14:18:36Z
canonical: "learn.calltower.com/cisco-jabber-registering-with-internal-dns"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://learn.calltower.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Cisco Jabber - Registering With Internal DNS

This document is for customers who are registering Jabber over the cloud, but have an internal DNS server. They need to add the following SRV record down below to their domain. Make sure it's their main domain, no subdomains.

Type = SRV

Service = _collab-edge

Protocol = _tls

Target = collaborate-atl.ct450.com or collaborate.ct450.com

Priority = 3

Weight = 7

Port = 8443