Telco and IT

Everything which is related to Telecommunications, IT and my work

Wireshark 1.6.1 does not start on Solaris 10

Fresh installation of Solaris 10 and wireshark (from sunfreeware.com) just cannot start:

root@am1slc01 # wireshark聽
No fonts found; this probably means that the fontconfig
library is not correctly configured. You may need to
edit the fonts.conf configuration file. More information
about fontconfig can be found in the fontconfig(3) manual
page and on http://fontconfig.org

Quick and dirty solution:

root@am1slc01 # cp -p /usr/local/etc/fonts/fonts.conf /usr/local/etc/fonts/fonts.conf.bak
root@am1slc01 # cp -p /etc/fonts/fonts.conf /usr/local/etc/fonts/fonts.conf
root@am1slc01 # wireshark聽

Works but do you have any other ideas?

Cheers

Application Context Name (ACN)

(link)聽List of most popular Intelligent Network ACSs

The application context (AC) is the mechanism for identifying the protocol and the protocol version of an application part (AP). The object identifier is used to assign a globally unique identifier to a protocol object, such as an AC for CAP. When the gsmSSF starts the CAMEL service, by sending the initial DP operation to the SCP, it includes the AC in the service invocation request.R.Noldus, CAMEL: Intelligent Networks for the GSM, GPRS and UMTS Network

PointCode Converter [Eng]

PointCode Converter [Eng]

Check it also: Point Code Converter on WWW

Short description

This small piece of software allows you to convert various formats of SS7 addresses .

Detailous description

Many times in my work I have oportunity to convert addreses in SS7 network. This operation is not extremly complicated but can take some time. That is main reason why this small piece of software was created.

Take a look also for WebPointCodeConverter.

SS7 networks addressing

Address within SS7 network can be writen in may different formats. Most populars are: decimal and with grouping (e.g. 7-7).

What does it means? Take a look below:

If 14-bits address (in my example it’s 8010 – dec format) will be shown in binary format and divided into two 7-bits groups we will get two numbers: 62 and 74. A a result we will get address 62-74.

Format 7-7 is one of many formats. Let’s imagine 8-6 or even 8-4-2! The only requirement is that sum of numbers from format description must be equal 17 (e.g.: 7+7 = 14, 8+4+2 = 14 or 8+6 = 14).

New: During my last project I discovered that SS7 addressing is not pice of cake I though before… It appeared that in China lenght of addresses is not equal to 14, but 24 bits (with SCCPType == 4). In this case address is represented with grouping 8-8-8.

Software

Application allows to convert SS7 adresses between various, widely configured formats. Now it supports only 14-bits addressing.
Predefined formats: Dec, 7-7, 6-8, 5-9, 8-6 and 9-5. If you need any other format you can edit file formaty.txt

Softare runs on PocketPC hardware and requires installed .Net.

Application Context Name (ACN)

Application Context Name (nazwa kontekstu aplikacji) jest identyfikatorem kontekstu zaproponowanym przez inicjatora dialogu. Application Context (kontekst aplikacji) jest definiowany poprzez zestaw element贸w, opcji i innych informacji niezb臋dnych do prawid艂owej wsp贸艂pracy. Definicja powy偶ej pochodzi z zalecenia Q.771, ale praktycznie mo偶emy uwa偶a膰 ACN za identyfikator protoko艂u, kt贸ry przenosi warstwa TCAP.

Lista i wyszukiwarka ACN dla protoko艂贸w u偶ywanych w sieciach IN

Bramka WWW -> UUS

W czasie mojej pracy w TP S.A. zatrudniony by艂em w Pionie Sieci i dziale zwi膮zanym z telefonami ISDN. Jednym z projekt贸w w kt贸rym uczestniczy艂em by艂a bramka umo偶liwiaj膮ca wysy艂anie wiadomo艣ci UUS bezgpo艣renio ze strony WWW.

Czym s膮 wiadomo艣ci UUS? UUS – czyli “User to User Signaling”. Jest to uproszczona wersja SMS贸w z telefonii kom贸rkowej. R贸偶nic膮 jest to, 偶e w przypadku UUS w sieci nie wyst臋puje tzw. Service Center – wiadomo艣ci przesy艂ane s膮 bezpo艣rednio mi臋dzy abonentami. Szczeg贸艂owy opis projektu znajduje si臋 w dokumencie PDF.

Projekt zdoby艂 drug膮 nagrod臋 oraz nagrod臋 publiczno艣ci w konkursie Telekreator og艂oszonym przez Prezesa TP S.A.

System wideokonferencji Ezenia

Pod koniec moich studi贸w spotka艂em si臋 z systemami wideokonferncyjnymi. Zaowocowa艂o to wyborem pracy dyplomowej – pisa艂em o telefonii IP. Zag艂臋bi艂em si臋 w protoko艂y H.323 oraz SIP.

W dobie wszechobecnych plagiat贸w swojej pracy dyplomowej nie umieszczam w internecie; je艣li kogo艣 interesowa艂by temat telefonii IP zapraszam do biblioteki wydzia艂u Telekomunikacji i Akustyki PWr 馃槈

Skr贸cony opis element贸w systemu wideokonferencyjnego firmy Ezenia (pracuj膮cego na protoko艂ach H.323) znajduje si臋 na stronach Wydzia艂u Elektroniki i Telekomunikacji PWr: System Wideokonferencyjny Ezenia.