---
title: "Discussion on \"Over 1000 Concurrent Calls: Does Your PBX Have Enough SIP Signaling Capacity?   \" | Hashnode"
description: "Discussion on \"Over 1000 Concurrent Calls: Does Your PBX Have Enough SIP Signaling Capacity?   \". Learn how Kamailio helps scale SIP signaling, distribute traffic across PBX servers, and handle registrations, subscriptions, and high call volumes."
url: "https://hashnode.com/posts/over-1000-concurrent-calls-does-your-pbx-have-enough-sip-signaling-capacity/6ad3366a90884aa75ddcdcd6"
---

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# [Over 1000 Concurrent Calls: Does Your PBX Have Enough SIP Signaling Capacity?](https://ashwinm.hashnode.dev/over-1000-concurrent-calls-does-your-pbx-have-enough-sip-signaling-capacity?utm_source=hashnode&utm_medium=feed)

Learn how Kamailio helps scale SIP signaling, distribute traffic across PBX servers, and handle registrations, subscriptions, and high call volumes.

Oct 17 · 13 min read · ashwinm.hashnode.dev  
Updated Oct 21  
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-   [#sip](https://hashnode.com/tag/sip)
-   [#kamailio](https://hashnode.com/tag/kamailio)
-   [#system-architecture](https://hashnode.com/tag/system-architecture)
-   [#voip](https://hashnode.com/tag/voip)
-   [#telecommunications](https://hashnode.com/tag/telecommunications)
-   [#telecom](https://hashnode.com/tag/telecom)

## Written by

[Ashwin M](https://hashnode.com/@Ashwin202)

@Ashwin202 · India

  
[View profile](https://hashnode.com/@Ashwin202)

A newbie on code

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