How do I tell how many trunk ports my PBX has

[tikiturtle]

Hello - Can someone tell me which load command would tell me how many trunk ports I have, and additionally if I have a PRI connected how many timeslots are configured -

Much Thanks - and have a great weekend!!!

 

[johnpoole]

time slots are not addressed per se in this sofware. they are but with tdn labels. carry over from analog trunk days.. configered trunks can be seen in ld 21 ltm, pri trunks can be best viewed in ld 60 stat.. the load 21 only shows trunks that are config'ed they may not all be in service. some techs don't beleive in removing unused software.. after the ltm command. you can do a ld 32 stat on the cards to see the status of the trunks.. look up ld 36 commands, they can give you time since last call per trunk. ld 2 can give you traffic switch wide

john poole
bellsouth business
columbia,sc

 

[srmega41]

A loop is equal to 32 time slots, so each PRI has access to that many. It is overkill, but that is the way each loop is defined at an architecutre level and to my knowledge that cannot be changed.

By trunk ports do you mean the number of licenses or the number that can be configured based on slots open?

If you mean licenses, you can print that out in LD 22 by entering SLT at the REQ prompt.

If you mean slots, you can use any slot in an Option 11, or any slots in a Network Group shelf on a larger system for PRI. An 11 has 1 loop per slot, where a bigger system, like an 81 has 2 loops per slot.

Analog trunks are 8 per card, so 8 per slots in an 11. On a bigger switch, they reside in the IPE shelf, so the number of slots in an IPE shelf times 8 is your total available. (There is a whole course on traffic measure and blocking on IPE shelves and superloop configuration, but I think that is not needed here!?)

If this does not answer your question, you made need to be more specific about what you are looking to find.

Hope this helps,

Scott M.

 

[johnpoole]

that is very true if your in europe.. state side, 23 b channels, 64 kb each, one d 64 kb, a single d can carry 264 b channels.. most users do not carry more then 46 b's per d.. and usually at least one back up d.. that is out of band sig. older t1's are 24 channels, 64 kb's per channel with 8kb per channel over head, that's in band, 256 over head for each 1.54 meg t1.. same as a data pri, just addresed different in the switch.. back when t/s were just used between towns, we used open wire, 14 gauge copper, bare wire with glass insulators for 270 volts. that ws in the late 50's and early 60's.. most cable at that time had paper insulation and couldn't handle the high voltage without major induction.. after we got away from lead sheath/paper cable.. we used a complete 50 pair for a t.. the 1st 17 for transmit, the last 17 for rec. pair 25 for ground and pair 26 for a audio_wire (voice pair for maint)... by then cable was color coded.. we installed repeaters each 5000 ft, sometimes for 30 miles.. all for a 1.54 meg ckt.. but you didn;t have to yell on ld calls, even back then we knew someone would make our work obselete every 10 years... now it's every 10 months... with gigabit copper making fiber a joke, the newest thing we can buy will be history before we finish the install

john poole
bellsouth business
columbia,sc

 

[srmega41]

Sorry for the confusion. I was referring to actual number of time slots, not channels. I was remembering way back to the days of my large system I&M class when we discussed the number of time slots in a superloop was 128 (32 t/s x 4 loops). The 32 comes from the loop in the switch, so a US PRI is wasting 8 time slots per T1, and the configuration was to avoid re-enginnering the backplane for US vs. Europe on the PRI side (at least that is what the Nortel instructor told us!)

This got us into the fact you could use 2 superloops connected to a single controller and provide an IPE shelf fully loaded with digital sets that was totally non-blocking. (128 t/s x 2 = 16 slots x 16 phones) I have never seen the need for 256 phones to access the backplane simultaneously and cram them all into one IPE shelf, but I digress!!!

I had to read your post twice to see what you meant, but I re-read my own and realized I did not do a good job of differentiating (sp?) between channels and time slots.

Have a good weekend,

Scott M.

 

[johnpoole]

your right, i just spent 15 minutes answering the wronge question.. duh.. read the question john... my bad.. i don't worry about ts blocking UNLESS it's a major acd group... 1000 agents 1000 trunks etc.. when i use both ports on the network card i try to use 1/3 of the slots for analog, low use interface.. you can load a network that hard, but unless you have to, don't.. i saw a 21 that had 4 0 and 4 1 all digital sets, 20 0 and 20 1 all analog. tech said it made it easy to keep track. he also had unique color jumper wire for depts.. this was rls 12 or so.. he had blocking problems, but at least they were color coded blocking problems... symptoms were, under high traffic, mostly digital sets, pick up the handset, press a button and wait 10 seconds for dt.. twice a day a free ini. courthouse complex, customers with guns.. never a good combo in the south

john poole
bellsouth business
columbia,sc

 

[tikiturtle]

Hey guys - thanks for your help - I will try LD 21

 

[johnpoole]

remember ld 21 ltm list all programed trunks, if someone upgraded a t or analog routes to pri's, and didn't delete the old trunks, they still show up in the ltm list

john poole
bellsouth business
columbia,sc