Phone Systems

Previous Thread
Next Thread
Print Thread
Rate Thread
T1/E1, CCIS....
#260865 09/04/07 11:07 PM
Joined: Nov 2006
Posts: 264
Lee07 Offline OP
Member
OP Offline
Member
Joined: Nov 2006
Posts: 264
Hello,
I am not familiar with telephony networking..
Can any one tell me what are the diferences between the T1/E1 and CCIS? :confused:
Big thanks to all replies.


Lee
EMP & Lightning Home Surge Protection
EMP - Click Here!
Re: T1/E1, CCIS....
#260866 09/05/07 03:42 PM
Joined: Dec 2006
Posts: 1,516
Member
Offline
Member
Joined: Dec 2006
Posts: 1,516
T1 (T-carrier, Level 1) is simply the digital signal level-1 (DS1) 'facility' that provides transport for 24 digitally multiplexed voice channels (using channel associated signaling/CAS or "inband" signaling), or 23 voice channels and a separate D-channel for signaling and message control (using ISDN PRI protocol). It can also be used to truck data at a rate of 1.544 megabits per second.

E1s transport 32 channels at 64Kbps (2 channels are reserved for signaling and controlling.) E1s and T1s may be interconnected for international use.

CCIS (Common Channel Interoffice Signaling) is simply a separate type of signaling, and is often used for trunking between different telephone exchanges. "Common Channel Signaling System 7", or SS7, is a signaling protocol that serves as an excellent example of CCIS. In using SS7, voice conversations are handled by the traditional telephone switches, while control signals are transmitted over a separate, packet-switched network, providing for much faster connects and disconnects while also allowing data, such as calling number delivery (caller ID) to be included. Messages transported using CCIS can also inform end offices of network congestion and outages. CCIS also serves as an important factor when interfacing VOIP calls with the traditional telephone network (PSTN).

Re: T1/E1, CCIS....
#260867 09/06/07 11:45 AM
Joined: Nov 2006
Posts: 264
Lee07 Offline OP
Member
OP Offline
Member
Joined: Nov 2006
Posts: 264
Thanks a lot.
can we just use E1/T1 cards to connect 2 NEC NEAX 2400 MMG PBXs together?
If yes how can I get the programming for that?


Lee
Re: T1/E1, CCIS....
#260868 09/06/07 04:11 PM
Joined: Dec 2006
Posts: 1,516
Member
Offline
Member
Joined: Dec 2006
Posts: 1,516
Your welcome, Lee. Rather than to move this discussion back over to the NEC forum: Simply use the "search" at the top of this page. If you receive no helpful information thru your search, just post your NEC 2400 NEAX MMG question as a new topic in NEC. This will help you receive faster responses to your question, and assist our future members ability to locate information thru their searches as well. :thumb:


Moderated by  Silversam 

Link Copied to Clipboard
Forum Search
Most Recent 5 Post
Vodavi Starplus DHS Unusual Events
by ABLE1 - 09/30/20 01:56 PM
WebRTC
by Coral Tech - 09/30/20 01:50 PM
SV9100 CP10
by teldata1 - 09/30/20 12:31 PM
SV9100 Software
by teldata1 - 09/30/20 11:41 AM
7100 Lan Printer Error
by RM SYSTEMS - 09/28/20 02:27 PM
Who's Online Now
30 members (Yoda, Ruben, Bob3470, Memphisribs, jknichols, Professor Shadow, LenShustek, KRRath, RATHER BE FISHING, crazy canuck, Iwatsu Guru, STS E, justbill, gelehu, Daniel, Noobed2336, ChrisNI, ABLE1, erniejoey, Carl Navarro, vicbob, BobRobert, metelcom, MooreTel, Hofman telekom, RonP, phonman123, EV607797, Telesystems, hbiss), 413 guests, and 76 robots.
Key: Admin, Global Mod, Mod
Popular Topics (Views)
Forum Statistics
Forums94
Topics93,979
Posts637,384
Members49,357
Most Online5,661
May 23rd, 2018
Today's Birthdays
data-monkey, LightSRC, MW2012, Rob Caves, Sonny NJ, The Tech
Newest Members
Hanale, xware, Adam19871, tmr-afmk, Big Alan
49356 Registered Users
Get Tech Support Now! Click the banner below
Get Tech Support Now!
Top Posters (30 Days)
dexman 30
Ruben 13
ABLE1 13
hbiss 12
Bluewater Sailing
https://www.patreon.com/bePatron?u=5256033
EMP Shield for Commercial - Home & Vehicle
Use Coupon code SAVE - Click Here!
Sold AD
Servpro Ventura 24-Hour Emergency Service
Free Estimates call us now 24Hours
Contact Us | Telephone System Tech Support | Terms of Service

Sundance Communications is not affiliated with any of the above manufacturers.
©Copyright Sundance Communications 1998-2020
Trusted Partners