E1 line

[slawek_jg]

Hi,

what do I have to know from my teleco company about E1 line that they provide to configure it on VWIC2-1MFT-T1/E1.

20 channels will be used.

regards

Slawek

[johncaston_2]

You'll need to know which channels they're using and only enable those on your gateway.

(NB: channel 16 is the control channel)

You will also need to know the framing type (CRC4 or NO-CRC4)

Here's all I had to do to set it up recently, which I split into 2 groups to match the PBX's, although you don't have to.

card type e1 0 0

controller E1 0/0/0

framing NO-CRC4

ds0-group 0 timeslots 1-15 type e&m-immediate-start

ds0-group 1 timeslots 17-30 type e&m-immediate-start

Good Luck

[slawek_jg]

is there a rule to always use the lowest 'timeslots'? I mean, if we need 20 channels we will use 1-15, then 17-21 ?

I thought E1 supports 31 channels + 1 control channel, wich gives 30 useable timeslots, how is it?

regards

Slawek

[johncaston_2]

I don't believe that there's any rule, purely depends on how they configure their end but it would be logical to implement it as you suggested.

Correct - 30 data channels (1-15 & 17-31).

If you don't enable the same timeslots as the provider then the caller will intermittently get silence if they get connected on a mis-matched channel