DMR Brandmeister CCS7 | DMR USER REPEATER Registration

Callsign Communication System 7 - DMR USER REPEATER Registration
DMR Brandmeister | CCS7

CCS7 - what's that?

Explained :

"CCS" stands for "Callsign Communication System". It was developed several years ago as an optimized alternative to the G2 callsign routing system.
CCS routing may be initiated based on callsigns, but also based on a numeric ID which may easily be entered by DTMF.
Using DTMF codes very quickly became the most common way.
When the CCS-Code was introduced for DSTAR callsign routing, nobody expected that the acceptance would be as high as we see it today.
At the beginning many people brought up arguments like "we have callsigns in amateur radio and do not need numbers", "the current G2 callsign routing is good enough" etc..
However, the system was setup first in the German language area where the DCS reflector system grew very fast and became the leading system.
DCS and CCS are closely connected, the callsign routing system CCS uses the DCS reflector mechanism to connect repeaters together for callsign routing.
CCS Callsign Routing basically connects 2 repeaters transparent together through a virtual reflector.
The DTMF system uses 4-digit numeric codes which provides about 9,000 CCS-IDs.
Users and repeaters share the same address space.
Towards end of 2014 it became visible that this address space wont be large enough for future development.

Users of CCS saw many advantages compared to the classic callsign routing,
- where calls are directed blind via repeaters without knowing if there runs a QSO at the other end,
- where reflectors on both sides get disturbed by incoming calls and phantom QSOs where they only hear one side,
- where the adressed recipient has to accept an incoming call within a short timeframe before he can talk,
- where complete callsigns with alpha characters have to be entered to address somebody which is much harder to do in many situations (like when working mobile) than to enter a 4-digit DTMF code to the DTMF keyboard of the microphone.

CCS7
We could now invent a new system, an own numbering scheme, new database servers, new admin systems, recruit new admins, create new errors and confusion for users.
But we could also use an existing, well designed and good working system which is in use since many years.
When the Digital Voice system "DMR" (Digital Mobile Radio) was introduced to Amateur Radio by the MARC-Group they were facing a system which was not developed for Amateur Radio like DSTAR. One fact was, that it did not allow to use alphanumeric callsigns for routing and identification. However, it is a very good system which fits good to our requirements in Amateur Radio and allows a lot of new developments and activities.
The compromise which is accepted meanwhile by most authorities worldwide is a numeric ID system which assigns an ID unique to a callsign in a public readable database.
Some intelligent OMs defined a structured ID scheme which is based on the "ITU Mobile Country Code" (MCC).
This code is also used in many commercial networks like in telephone networks.
The numbering system uses a hierarchic structure, the 1st digit represents the continent (2=Europe,3=North-America, 4=Asia, 5=Australia/Oceanien,6=Africa,7=South-America). The leading 3 digits identify the country, for example 235 for the UK, 262 for Germany, 310-319 for the United States, 655 for South Africa etc.
In Amateur Radio we use 4 more digits for User-IDs, 3 more digits for Repeater IDs. Some countries use 1 digit after the MCC for a regional structure like for States, Kantone, Bundesländer.


DMR USER / REPEATER Registration

https://dmr-marc.net/cgi-bin/trbo-database/register.cgi

If you are in EUROPE or AFRICA, go to:
https://register.ham-digital.org/


DMR-/CCS7-ID
This is a central registration system for different Digital Voice services around D-Star and DMR for Amateur Radio. You may register CCS/DTMF, DMR-IDs and D-Star-Registrations from one platform.

BrandMeister Network Users Discussion Group

https://groups.io/g/BrandMeister