20. October 2017

Soldupe Chat

Soldupe Chat

In this blog we will introduce you to the Soldupe Chat, present you its features and talk about the differences to other popular chat services.

When obtaining a Soldupe subscription, you will also receive access to the Soldupe Chat backend system, which is based on ejabberd.

The same XMPP Backend Server on which services like WhatApp and others rely.

But we are sticking to plain XMPP, without all the proprietary extensions – why that?

  1. We deeply believe in open standards
  2. We hate Lock-In effects
  3. We are here to give you back your digital freedom and that doesn’t work out with proprietary s…stuff

Chat Features

  • 1:1 Chat
  • Multi-User Chats (Chatrooms)
  • Display your presence
  • Use a dedicated avatar picture and display name
  • Sending pictures, videos and other files via Chat or to Chatrooms
  • use multiple clients (mobile and desktop) simultaneously
  • mandatory, transparent encryption
  • easy to use end-to-end encryption via OMEMO

Supported XMPP Extensions

XMPP is an open protocol, which features are organized into so call “extensions” (XEP), hence the name Extensible Messaging and Presence Protocol (XMPP).

We are supporting the following XEPs:

XEP-0045: Multi User Chat
XEP-0163: Personal Eventing Protocol
XEP-0191: Blocking Command
XEP-0198: Stream Management
XEP-0237: Roster Versioning
XEP-0280: Message Carbons
XEP-0352: Client State Indication
XEP-0357: Push Notifications
XEP-0363: HTTP File Upload

XEP-0045: Multi User Chat
Lets you setup conference rooms, where you can chat with up to 250 other people. This rooms may be either public or private.

XEP-0163: Personal Eventing Protocol
Enables you to upload an avatar pic beyon other things.

XEP-0191: Blocking Command
Somebody annoys you? Give him or her ye olden Banhammer.

XEP-0198: Stream Management
In case of small network outages or IP-Address changes on mobile networks, this extension will help you keeping your connection for a seamless user experience.

XEP-0237: Roster Versioning
Just helps you saving bandwidth, as only changes in the roster are delivered to your client.

XEP-0280: Message Carbons
If you are using the Soldupe Chat backend from several devices, this will deliver your outbound messages to all your other devices. So you can change between devices, without losing track on your conversations.

XEP-0352: Client State Indication
This extension lets you manage your online/offline state.

XEP-0357: Push Notifications
This extension adds push notifications to our XMPP server, which sends you information about new messages to your devices.

XEP-0363: HTTP File Upload
This extension enables you to post files to Multi User Chats. It also makes the data transfer between clients more reliable. NOTE: When using OMEMO encryption, these files will be stored encrypted on the server. Otherwise not!

When using the Soldupe Chat backend, your JID will be username@soldupe.im – Inband registration without having an active Soldupe subscription is not possible.

Client Software

Basically you can use any client software you like, as long as it understands standard XMPP and supports TLS 1.2.

We recommend to use these clients with the Soldupe Chat Backend:

The client configuration is straight forward: Just enter your JID, as well as your password and the app should configure itself. We will release a dedicated manual on how to configure several common chat clients for usage with Soldupe.

Encryption

The Soldupe Chat backend requires mandatory encryption.
The client to server and server to server connections on the Soldupe Chat backend require both mandatory TLS 1.2 encryption.

Of course, you can also use OTR or OMEMO (which we recommend) encryption with our chat backend.

 

If you have any questions, drop us a line on one of our social media channels or sign up to our Newsletter!

 

Last updated: October 20th, 2017