SDH has a byte set aside for a 64Kbps voice channel in the header (byte E2) with the title MS orderwire byte. Why? What is this for?

What is an erlang?

I have installed open cgf on two servers one i made as client, other as server Now i started running server with ./open-cgf -i Also at client i executed test_udp:simple_test({{65,2 …

Chinese and North American SS7 point codes are 24 bits, ITU and International point codes are 14 bits and Japanese point codes are 16 bits. Why?

Why is this site about Mr Watson? Who was he? Why was someone telling him what do do?

I own and operate a small business (only a couple people now). As we grow, I'll need some type of PBX system with extensions, an automated attendant, voice mail, etc. Asterix see …

I've heard of Capability Point Codes, but I don't know what they are or how they should be used? Are they ANSI or ITU? Do network elements still have their own Point Codes? Should …

I've seen references to HO and LO optical links. This apparently means High Order and Low Order, but that isn't a lot of help. I've seen references to eigenvalues on Wikipedia, bu …

Looking specifically at an IS-826 deployment using ANSI TCAP, what should a CONNFAIL use as the invoke correlation? I believe that the message flow in a compliant environment will …

I hear people talking about opening up their networks, Application Enablement, and other fine things to allow 3rd party developers easy access to a mobile network core. And IMS cor …

How can a GSM/UMTS operator avoid receiving SMS spam? By spam I mean large quantities of SMS from another network that it (usually) can't recoup the cost of, towards customers w …

Some timeslots on a channellised E1 are used for signalling, but when should I use timeslot 0, and when TS 15? What about TS 31? Do the same rules apply to T1s?