SL 1000 with analog phone issue

[stalinsunny1]

I have one SL 1000 system and 2 digital phones , and 6 analog phones , and 3 trunk line also, most of the time analog phone not working , when we take receiver and choose line by 9 button so we got dial tone but after entering phone numbers call automatically disconnected ,but some time we can make call , digital phone have no problem that working fine, I expecting valuable answers

 

[stalinsunny1]

please help me

 

[OzzieGeorge]

Don't know the system but you need to close down the outgoing trunk group to only contain the working trunks by the sound of it.

 

[Ragnorak]

OzzieGeorge is probably correct, or almost correct. The SL1100 has 4 port CO cards, so with three lines you have at least one line does not have dial tone on it. By default all the lines will be in outgoing group one.

But the SL1100 does not do circular hunting for trunks. Each line has a priority to indicate the order in which they will be selected. So the system will only select the fourth line when all three of the other lines are busy (which you can't see on an analog station.)

So you probably need more lines (or someone installed it and skipped a line so you are selecting a dead trunk somewhere in the order.)

Program 14-05 has the outgoing line group and the priority order for the trunks.

 

[stalinsunny1]

Thanks, OzzieGeorge and Ragnorak
I already created Trunk access map setup 14-07 and Trunk access map for extension 15-06, Because here 5 phones using 2 trunk line and other 3 use one trunk line, two trunk line have same number other one trunk line have different number, how can set 14-05 . can you explain ? this problem only effecting analog phones . two digital phones working fine

 

[stalinsunny1]

Please help me

 

[Ragnorak]

14-05 is where you assign Trunk Groups and the line selection order. You will see all of the trunks installed on the system there (whether or not you have anything plugged into them.) The two fields for each trunk are "Trunk Group" and "Priority." Lines that are used for different outbound purposes (like two companies on one system) should be in different Trunk Groups." The "Priority" field designates the order in which the system will try and grab those trunks.

14-06 Trunk Group Routing is where you select which Trunk Groups are available for which routes.
21-02 Is where you assign extensions to trunk routes.

So if the 5 phones that use the two trunks are using lines 1 and 2 and the 3 phones that use the one other trunk use line 3, you sould have programming looking something like this:

14-05
Trunk 01 = Trunk Group 1 Priority 1
Trunk 02 = Trunk Group 1 Priority 2
Trunk 03 = Trunk Group 2 Priority 1

14-06
Route Table 01 Priority 1 = 1
Route Table 02 Priority 1 = 2

21-02
Extension that use lines 1&2 should be assigned to route 1 and extensions that use line 3 should be assigned to route 2.

Route 2 only has a single trunk. If it is in use, the other extensions assigned to route 2 won't be able to dial out because there is only the single line available and it is currently busy.
If you want the phones that should be using line 3 to be able to grab lines 1&2 when line 3 is busy, you need to add backup routes to 14-06

14-06
Route Table 01 Priority 1 = 1, Priority 2 = 2
Route Table 02 Priority 1 = 2, Priority 2 = 1

The second Priority field defines the Trunk Group that route will use if the primary Trunk Group is not available (all lines busy)
With that programming when line 3 is busy the phones assigned to grab line 3 would then try to grab line 1-- and if line 1 was busy it would grab line 2 (That's the priority order from 14-05)

It seems like what is happening is that the lines in a trunk group are busy and someone on an analog phone (that can't see the line(s) are busy like on a digital phone) is trying to make a call and can't because there are no free lines to use that the extension has access to. In 14-05 Trunk 4 is probably still in a Trunk Group, but has no dial tone plugged into it. So when all the lines are busy the system tries to dial out on Line 4 because it is in the same Group as 1,2, or 3. The system thinks it has a fourth line to use so it tries to dial out instead of giving the error that all lines are in use.

Double check the programming above (14-05, 14-06, 21-02) but I suspect that even after you resolve the issue of selecting the dead trunk 4 you are going to need to order another line.

 

[stalinsunny1]

Thank you ragnorak for your good support expecting more from you in future, my problem I solved by 20-03-03 value I changed from 0 to 1 .DTMF setting for SLT that was my problem. But above you given information very usefull,I can understand more about truck line priority setup for group. thank you so much sir