once we get the meridian set up with some local analog and digital sets, of course the next thing is to configure some trunks. a nick easy way to get a t1 trunk up quickly is to use cas signaling. i dont really use cas any longer on my network but it is definitely as easy as it gets as far as setting up digital trunks. the scenario is as follows.
cisco mc 3810 with avm and mft t1 card. mft t1 card is connected to nortel 1.5 mb dti/pri card in slot 2 of the meridian using cas. the meridian will be providing network clock for the t1 span.
when this is all said and done, a user on the nortel can dial an extension on the cisco by dialing 9, then the 4 digit extension number of a phone on the cisco side (e.g. 9000). on the cisco side, a user can dial an extension on the nortel by dialing the 4 digit extension number of a phone on the nortel side (e.g.
7000 or 8000).
before we even talk about software we first have to consider cabling between the cisco and the switch. refer to the table below; this will give us a crossover cable. RJ45 pins are counted by pointing RJ45 jack, pins end away from you, clasp facing bottom. pin 1 will be the pin furthest to your left, pin 8 will be the pin furthest to your right. cable from 66 block pin to RJ45 pin; the nortel pin numbers and signal identifiers are just given for reference.
nortel pin 66 block pin RJ45 pin signal
23 46 1 R
24 48 4 R1
48 45 2 T
49 47 5 T1
assume we start out with a clean configuration: no digital data block, digital loops, d channels, etc. defined. use the
procedure above to clear out the switch if in question. for the purpose of this example there is a dti/pri card with a clock and controller and dchi daughterboard (unused here) installed in slot 2 of the meridian.
step 1: create digital data block. we only need to do this once on a system. basically it is just used to establish a TRSH
table, which is just a table full of threshold settings mostly for error counters. this is also where you define your clock controller later. here we just use all default values for the threshold set (just hit return).
>LD 73 DDB000
UDATA: 31988 1 PDATA: 101492 5 DISK RECS AVAIL: 512
REQ NEW TYPE DDB TRSH 0 RALM BIPC LFAC BIPV SRTK SRNT LFAL SRIM SRMM TRSH
UDATA: 31988 1 PDATA: 101460 5 DISK RECS AVAIL: 512
REQ ****
>
OVL000
>
step 2: define the dti/pri card in slot 2 of the meridian by configuring a digital loop for it in the common equipment settings (LD 17)
>LD 17 CFN000
UDATA: 32244 1 PDATA: 101105 15 DISK RECS AVAIL: 512
DCH AVAIL: 64 USED: 0 TOT: 64 AML AVAIL: 16 USED: 0 TOT: 16 REQ CHG
TYPE CEQU TDS CONF
DLOP 2 24 ESF (note we are using all 24 channels for voice)
MODE PRI (even though this says PRI, just trust that it will work in CAS mode)
LCMT B8S YALM FDL TRSH 0 DLOP MTYP
UDATA: 32116 1 PDATA: 101020 15 DISK RECS AVAIL: 512
DCH AVAIL: 64 USED: 0 TOT: 64 AML AVAIL: 16 USED: 0 TOT: 16 REQ ****
>
OVL000
>
step 3: define the clock controller on our dti/pri card in slot 2 in the digital data block.
>LD 73 DDB000
UDATA: 32116 1 PDATA: 101020 15 DISK RECS AVAIL: 512
REQ CHG TYPE DDB CLKN 2
PREF (just hit return, nortel defaults to free run, it will be clock master for the span)
SREF TRSH 0 RALM BIPC LFAC
BIPV SRTK SRNT LFAL SRIM SRMM TRSH
UDATA: 32116 1 PDATA: 101020 15 DISK RECS AVAIL: 512
REQ ****
>
OVL000
>
step 4: enable the dti/pri card in slot 2 of the meridian
>LD 60 DTI000 .ENLL 2 PRI000 2 5 PRI000 2 5 DTA021 2 DTI030 2 .****
>
OVL000
>
step 5: create a route for the dti/pri card. it will be a direct inward dial (did) trunk which makes this easy to set up because basically how it works is the user dials an access code, gets on a trunk, and the PBX just forwards out what digits the user
dials to the trunk. conversely when the cisco gets a call that it needs to send on to the pbx, it just sends out the digits it gets over the trunk to the PBX subject to any stripping rules we set up.
>LD 16 RDB000
UDATA: 32116 2 PDATA: 101012 15 DISK RECS AVAIL: 512
REQ NEW TYPE RDB CUST 0 DMOD ROUT 20
TKTP DID (as above this makes the dial plan easy just matches incoming
digits) TIMR EOD 13952 13952 TIMR DSI 34944 34944 TIMR NRD 10112 10112
MUS NO MR NO EQAR NO OHQ NO OHQT 00 TTBL 0 OHTD NO PLEV 2 MCTS ALRM NO
UDATA: 32116 2 PDATA: 100880 15 DISK RECS AVAIL: 512
REQ SCH0101 REQ ****
>
step 6: add a trunk to the route. we create a single DID trunk consisting of the first channel of the t1 span.
>LD 14 TRK000
UDATA: 32116 2 PDATA: 100880 15 DISK RECS AVAIL: 512
TNS AVAIL: 172 USED: 28 TOT: 200 REQ NEW
TYPE DID (DID to match the route we just created) TN 2 1
CUST 0 NCOS 0
RTMB 20 1 (first member of route 20 trunk group, matches route number from step 5)
NITE
SIGL EM4 (4 wire e&m signalling matches cisco)
STRI WNK (e&m wink start signalling matches on cisco) STRO WNK
SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 01 RT 20 MB 1 UDATA: 31948 2 PDATA: 100842 15
DISK RECS AVAIL: 512
TNS AVAIL: 171 USED: 29 TOT: 200 REQ ****
>
OVL000
>
step 7: add the rest of the trunks to the route (big datafill!) just repeat what we did in step (6) 23 more times..
>LD 14 TRK000
UDATA: 31932 1 PDATA: 100842 2 DISK RECS AVAIL: 512
TNS AVAIL: 171 USED: 29 TOT: 200 REQ NEW
TYPE DID TN 2 2 CUST 0 NCOS 0 RTMB 20 2 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 02 RT 20 MB 2 UDATA: 31840 1 PDATA: 100797 4
DISK RECS AVAIL: 512
TNS AVAIL: 170 USED: 30 TOT: 200 REQ NEW
TYPE DID TN 2 3 CUST 0 NCOS 0 RTMB 20 3 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 03 RT 20 MB 3 UDATA: 31748 1 PDATA: 100752 6
DISK RECS AVAIL: 512
TNS AVAIL: 169 USED: 31 TOT: 200 REQ NEW
TYPE DID TN 2 4
CUST 0 NCOS 0 RTMB 20 4 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 04 RT 20 MB 4 UDATA: 31656 1 PDATA: 100707 8
DISK RECS AVAIL: 512
TNS AVAIL: 168 USED: 32 TOT: 200 REQ NEW
TYPE DID TN 2 5 CUST 0 NCOS 0 RTMB 20 5 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 05 RT 20 MB 5 UDATA: 31564 1 PDATA: 100662 8
DISK RECS AVAIL: 512
TNS AVAIL: 167 USED: 33 TOT: 200 REQ NEW
TYPE DID TN 2 6 CUST 0 NCOS 0 RTMB 20 6 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 06 RT 20 MB 6 UDATA: 31472 1 PDATA: 100617 8
DISK RECS AVAIL: 512
TNS AVAIL: 166 USED: 34 TOT: 200 REQ NEW
TYPE DID TN 2 7 CUST 0 NCOS 0 RTMB 20 7 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 07 RT 20 MB 7 UDATA: 31380 1 PDATA: 100572 8
DISK RECS AVAIL: 512
TNS AVAIL: 165 USED: 35 TOT: 200 REQ NEW
TYPE DID TN 2 8 CUST 0 NCOS 0 RTMB 20 7 SCH0224 RTMB 20 8 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 08 RT 20 MB 8 UDATA: 31288 1 PDATA: 100527 8
DISK RECS AVAIL: 512
TNS AVAIL: 164 USED: 36 TOT: 200 REQ NEW
TYPE DID TN 2 9 CUST 0 NCOS 0 RTMB 20 8 SCH0224 RTMB 20 9 NITE SIGL EM4
STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 09 RT 20 MB 9 UDATA: 31196 1 PDATA: 100482 8
DISK RECS AVAIL: 512
TNS AVAIL: 163 USED: 37 TOT: 200 REQ NEW
TYPE DID TN 2 10 CUST 0 NCOS 0 RTMB 20 10 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 10 RT 20 MB 10 UDATA: 31104 1 PDATA: 100437 9
DISK RECS AVAIL: 512
TNS AVAIL: 162 USED: 38 TOT: 200 REQ NEW
TYPE DID TN 2 11 CUST 0 NCOS 0 RTMB 20 11 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 11 RT 20 MB 11 UDATA: 31012 1 PDATA: 100392 11
DISK RECS AVAIL: 512
TNS AVAIL: 161 USED: 39 TOT: 200 REQ NEW
TYPE DID TN 2 12
CUST 0 NCOS 0 RTMB 20 12 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 12 RT 20 MB 12 UDATA: 30920 1 PDATA: 100347 11
DISK RECS AVAIL: 512
TNS AVAIL: 160 USED: 40 TOT: 200 REQ NEW
TYPE DID TN 2 13 CUST 0 NCOS 0 RTMB 20 13 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 13 RT 20 MB 13 UDATA: 30828 1 PDATA: 100302 11
DISK RECS AVAIL: 512
TNS AVAIL: 159 USED: 41 TOT: 200 REQ NEW
TYPE DID TN 2 14 CUST 0 NCOS 0 RTMB 20 14 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 14 RT 20 MB 14 UDATA: 30736 1 PDATA: 100257 11
DISK RECS AVAIL: 512
TNS AVAIL: 158 USED: 42 TOT: 200 REQ NEW
TYPE DID TN 2 15 CUST 0 NCOS 0 RTMB 20 15 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 15 RT 20 MB 15 UDATA: 30644 1 PDATA: 100212 11
DISK RECS AVAIL: 512
TNS AVAIL: 157 USED: 43 TOT: 200 REQ NEW
TYPE DID TN 2 16 CUST 0 NCOS 0 RTMB 20 16 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 16 RT 20 MB 16 UDATA: 30551 1 PDATA: 100167 11
DISK RECS AVAIL: 512
TNS AVAIL: 156 USED: 44 TOT: 200 REQ NEW
TYPE DID TN 2 17 CUST 0 NCOS 0 RTMB 20 17 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 17 RT 20 MB 17 UDATA: 30459 1 PDATA: 100122 11
DISK RECS AVAIL: 512
TNS AVAIL: 155 USED: 45 TOT: 200 REQ NEW
TYPE DID TN 2 18 CUST 0 NCOS 0 RTMB 20 18 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 18 RT 20 MB 18 UDATA: 30367 1 PDATA: 100077 11
DISK RECS AVAIL: 512
TNS AVAIL: 154 USED: 46 TOT: 200 REQ NEW
TYPE DID TN 2 19 CUST 0 NCOS 0 RTMB 20 19 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 19 RT 20 MB 19 UDATA: 30275 1 PDATA: 100032 11
DISK RECS AVAIL: 512
TNS AVAIL: 153 USED: 47 TOT: 200 REQ NEW
TYPE DID TN 2 20 CUST 0 NCOS 0 RTMB 20 20 NITE SIGL EM4
STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 20 RT 20 MB 20 UDATA: 30183 1 PDATA: 099987 12
DISK RECS AVAIL: 512
TNS AVAIL: 152 USED: 48 TOT: 200 REQ NEW
TYPE DID TN 2 21 CUST 0 NCOS 0 RTMB 20 21 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 21 RT 20 MB 21 UDATA: 30091 1 PDATA: 099942 12
DISK RECS AVAIL: 512
TNS AVAIL: 151 USED: 49 TOT: 200 REQ NEW
TYPE DID TN 2 22 CUST 0 NCOS 0 RTMB 20 22 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 22 RT 20 MB 22 UDATA: 29999 1 PDATA: 099897 14
DISK RECS AVAIL: 512
TNS AVAIL: 150 USED: 50 TOT: 200 REQ NEW
TYPE DID TN 2 23
CUST 0 NCOS 0 RTMB 20 23 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 23 RT 20 MB 23 UDATA: 29907 1 PDATA: 099852 14
DISK RECS AVAIL: 512
TNS AVAIL: 149 USED: 51 TOT: 200 REQ NEW
TYPE DID TN 2 24 CUST 0 NCOS 0 RTMB 20 24 NITE SIGL EM4 STRI WNK STRO WNK SUPN YES
CLS DTN ECD WTA LPR APN THFD P10 VNL TKID
NEW TRK TN 002 24 RT 20 MB 24 UDATA: 29815 1 PDATA: 099807 14
DISK RECS AVAIL: 512
TNS AVAIL: 148 USED: 52 TOT: 200 REQ ****
>
that should basically do it for the nortel, we might have to kick the trunk card with DISL 2/ENLL 2 in LD 60 on the nortel, or a shut/no shut on controller t1 0 on the cisco, or power cycle one device or the other, but the t1 link should come up and work great with this config.
so now the cisco configuration. i will just post the pertinent parts of the configuration as relating to the t1 part of things.
it is really fairly simple. we configure our t1 controller in cas mode and create a ds0-group that contains all of the
timeslots. the cisco generates a voice-port 0:1 to represent the t1. we route calls to the pbx using dial-peers with various
patterns consisting of a trunk access code and an extension of the pbx.
voice-ports 1/5 and 1/6 are just fxs ports on the avm in the cisco. i have a test phone hooked up to the fxs port 1/6 at extension 9000.
note that the cisco is taking network clock from the nortel on the t1 span. also note that we use forward-digits 4 in the dial peer to forward the full four digit extension that was dialed to the meridian.
! the network-clock base-rate parameter can be excluded and it will still work
network-clock base-rate 56k
!
voice service voip sip
session transport tcp
!
no voice confirmation-tone
!
!
controller T1 0 mode cas
framing esf linecode b8zs
ds0-group 1 timeslots 1-24 type e&m-wink-start description t1 to meridian
!
!
voice-port 0:1
!
voice-port 1/5
!
voice-port 1/6
description test phone on fxs port
!
!
!
dial-peer voice 9000 pots destination-pattern 9000 port 1/6
!
dial-peer voice 7000 pots destination-pattern 7...
supplementary-service pass-through port 0:1
forward-digits 4
!
dial-peer voice 8000 pots destination-pattern 8...
supplementary-service pass-through
port 0:1
forward-digits 4
!
sip-ua
retry invite 3 retry response 3 retry bye 3 retry cancel 3 timers trying 1000 timers notify 1000 timers info 1000
!
!
gatekeeper shutdown