question about trunk lines

Hi,

I have a problem in establishing the number of lines required to curry out the traffic from different sources. Now there are 5 trunks conveying the traffic each with different number of lines, which traffic parameters I know i.e. ADPH (Average Daily Peak Hour) or TCBH (Time Consistent Busy Hour) and traffic intesity in Erlangs. The question is that: How to design one trunk grouping traffic from those different sources, that is: what should be the required number of links in projected trunk given the traffic parameters for all sources to be put togather in the new trunk?

Regards
Dariusz

hi every One

Sir could send brief documentation of IPLC Lines and how it works.

Manish,

1. Channelized T1/E1, are trunks with channelized bandwidth, I mean, T1 is divided in 24 and E1 in to 32 Channels.

2. Whereas, Unchannelized is the raw bandwidth of T1/E1 i.e., 1.544Mbps/2.048Mbps.

3. “Analog Call”, is analog, may be ‘coz of it’s local loop is analog… Usually local loop is analog.. and we use a pair of wires (with RJ11 – Jack) to connect the telephone. Digital Calls we can call it as ISDN call, we’ve ISDN NTs on out home and we connect Digital phones.

4. Number of trunks depends on the capacity of the call center. i.e., the call volume it is going to handle.

5. u can go for ISDN PRI/ T1/E1/

6. E1/T1 are not same as PRI, PRI uses a different signalling compared with E1/T1. But the bandwidth and no. of channels are going to be the same.

7. yes, again channelized E1/T1 uses different signalling (CAS), where as ISDN uses CCS.

Regds,
Muzammil.

Zahid,

What users u mean? U mean.. internet users and internet BW? if yes, To my knowledge there is no formula which gives the number of users for a particular BW. It’s basically sharing.. of the bandwidth to the avaliable no. of users.

If it’s a trunk, I mean for voice calls… it’s always 64kbps per user with Toll quality voice. But now, most operators compress the voice, since we’ve better compression technologies, with same voice quality. So, depending on the compression technique used the no. of user varies for a T1/E1 line or for a BW.

Best Rgds.

HI to all,

PLease let me know which LAN and WAN protocols are used in IPLC line and how can i identify which protocol is down by looking LED’s on IPLC modem?

thanks

Thank you muzamil, its for internet users. I heard the formula but i lost it. there is such formula e.g.

a*1024/users (this is example)

I dont remember

Manish,

Well, I can through some light on these. Basically IPLC is a pipe. We push in data at one end and get the same thing at the other end.
Say, We’ve a T1 line at US and connected to a TollFree. The telco forwards all the calls coming to the tollfree to our T1 and we’ll have a MUX at that end. The Mux in tun will have two interfaces, one for T1 (input)and an IPLC termination coneected thru a modem can be V.35 interface. The Mux compresses the T1 line for about 1:8 ratio (usind CELP or AD-CELP techniqies). The it goes to the IPLC provider AT&T, MCI or whatever it is.
On the other end, say India we’ll get the same v.35 interface with modem. we’ll terminate that at the MUX and we’ll take decompressed T1, as out put.

We use telnet to configure the MUX, on both the sides. The IPLC line problem is taken care by the Telcos, we’ll have to bug the guys at the both end VSNL and ATT or MCT. And telneting mux, requires the ip and login, these details will usually be with MUX guys.

regds.

Zahid,
I’ve no idea abt. the Telllabs Mux, I’ve not worked on it. But most muxes are remote configurable, thru telnet. So if u’ve the ip and login details u can get the config.

regds,