Hello,
I'm running into an issue with the T1 hand-off between an Adtran 908e Gen 2, and a Shoretel T1K
Due to a hardware failure, we are replacing an Adtran Total Access 904 (Gen 2) (R13.5.1.E) with a Total Access 908e (Gen 2) (R13.5.0.E).
These devices hand off to a Shoretel SG-T1K
Using the exact same cable, moving from T1 0/2 of the TA 904 to T1 0/3 of the TA 908e, the interface remains in a DOWN status. But when the same cable is connected to the TA 904, I did confirm that the status of T1 0/2 changes to an UP status.
I created a loopback cable and confirmed that T1 0/3 of the TA 908e changed to an UP status.. No errors were observed when sending test pattern (QRSS)
But again, moving the exact same cable to the T1 0/3 interface of the 908e, the interface doesn’t come up.
I did this for all 4 T1 ports of the 908e, and none of them came up.
For troubleshooting purposes I created several cable variations (straight through, cross-over, T1/NET cross-over (1-4,2-5) T1/NET straight through, etc.) none of which caused a change in status of the interface. The only exception was the Loopback, that brought the interface to an “UP” status.
I went as far as adjusting the T1 interface’s lbo to match the length of the cable, or attempt to compensate for /any/ possible noise by adjusting the dB level of the lbo.. None of which worked either..
Changing the primary timing source to T1 0/3 didn't change anything due to the DOWN status of the T1 interface.
I changed the timing source back to internal as the primary, and T1 0/3 as the secondary.
I also confirmed that both switch types are National ISDN 2.
I have also updated the tdm-group from 1 to 3 (and reversed) with no change.
The SIP trunk is registered, and have had no issues on the SIP side of this configuration.
interface t1 0/3
description Hand-off to PBX
framing esf
coding b8zs
lbo long 0
fdl ansi
remote-loopback
remote-alarm rai
alias
snmp trap link-status
no snmp trap threshold-reached
no snmp trap line-status
tdm-group 3 timeslots 1-24 speed 64
no shutdown
interface pri 1
description pri 1
alias
isdn switch-type ni2
role network b-channel-restarts enable
no isdn name-delivery
no calling-party override
calling-party presentation allowed
calling-party screening auto
no area-code
no calling-party number
calling-party name-facility-timeout 2
connect t1 0/3 tdm-group 3
digits-transferred all no-prefix
redirecting-number as-received
no isdn alert disable pi-8
no isdn connect enable pi-2
no isdn setup enable pi-1
no isdn setup enable pi-3
isdn setup enable redirecting-number
isdn pi-location public
no isdn supplementary-service tbct
no isdn supplementary-service tbct notify-controller
no isdn supplementary-service tbct transfer-counters
isdn supplementary-service tbct active-transfers 100
isdn supplementary-service tbct transfer-rate 10
isdn supplementary-service tbct d-channel-id auto
snmp trap link-status
no shutdown
isdn-group 1
call-type any
incoming-accept-number $
min-channels 0
max-channels 0
resource pool-member
connect pri 1
timing-source internal
!
timing-source t1 0/3 secondary
voice class-of-service Default
override-passcode
default-level
aa-dnd
absent-message
block-caller-id
call-privilege all
camp-on
conference
disable-callwaiting
dnd
external-fwd
forward
hold
hotel
logout-group
message-waiting
park
redial
remote-fwd
retrieve-park
return-last-call
station-lock
system-speed
transfer
!
voice codec-list "G.711 & .729"
no default
codec g711ulaw
codec g729
!
voice codec-list TRUNK
no default
codec g711ulaw
!
!
!
voice trunk T01 type sip
description "SIP"
resource-selection circular descending
no reject-external
no caller-id-override number-inbound
no caller-id-override name-inbound
caller-id-override emergency-outbound match-substitute
no caller-id-override privacy-outbound match-substitute
no trunk-number
no busy all
match ani "$" add p-asserted-identity [redacted]
sip-server primary [redacted] udp 5060
sip-server rollover timeout-only
no sip-server validation
no snmp trap registration
registrar primary [redacted] udp 5060
registrar threshold percentage 50
registrar expire-time 3600
registrar max-concurrent-reg 32
registrar require-expires
no outbound-proxy primary
no conferencing-uri
domain "0.0.0.0"
dial-string source to
no sip-keep-alive
max-number-calls 23
no alert-info incoming auto-answer
no alert-info outgoing auto-answer
register [redacted] auth-name [redacted] password encrypted [redacted]
no trust-domain
no p-assert-diversion
no check-supported replaces
no subscribe
no alc
no rtp dtmf-relay offer
no rtp media video filter
media-loopback
codec-list TRUNK both
no prefer trunk-routing
no grammar request-uri host-resolve
grammar request-uri host sip-server
grammar from host sip-server
no grammar from host override registered-users
grammar from user domestic
grammar p-asserted-identity host sip-server
grammar to host sip-server
grammar supported 100rel
no grammar require 100rel
no grammar proxy-require privacy
grammar alert-info url 127.0.0.1
grammar user-agent default
grammar user-agent include firmware-version
no grammar user-agent include serial-number
no grammar user-agent include hostname
no grammar user-agent include custom-text
grammar refer-to intratrunk-attended-transfer source to-from
no trunk-group-id
authentication username [redacted] password encrypted [redacted]
default-ring-cadence internal
no update-supported
diversion-supported
no transfer-mode
no ringback override 180
no ringback override 183
prefer double-reinvite
prefer reinvite-without-sdp
no sip-server monitor
!
voice trunk T02 type isdn
description "PRI"
resource-selection circular descending
no reject-external
no caller-id-override number-inbound
no caller-id-override name-inbound
no caller-id-override emergency-outbound
no caller-id-override privacy-outbound match-substitute
connect isdn-group 1
early-cut-through
no alc
no modem-passthrough
no modem-passthrough cng-early-detect
no t38
t38 redundancy high-speed 0
t38 redundancy low-speed 0
t38 max-buffer 200
t38 max-datagram 72
t38 max-rate 14400
t38 ced length 3000
no t38 ced auto-generate
no t38 generate-cng
no t38 cng-relay-selective
t38 v21-preamble-timeout 1700
t38 error-correction redundancy
t38 ecm enable
t38 fallback-mode g711
no vad
no plc
nls
no anlp
echo-cancellation
rtp tx-gain 0
rtp rx-gain 0
rtp frame-packetization 20
rtp delay-mode adaptive
rtp packet-delay nominal 50
rtp packet-delay fax 50
rtp packet-delay maximum 100
no rtp qos dscp
rtp dtmf-relay nte 101
no media-loopback
no codec-list
no prefer trunk-routing
!
!
voice grouped-trunk NETWORK
no description
resource-selection linear
trunk T01
accept $ cost 0
!
!
voice grouped-trunk PRI
no description
resource-selection linear
trunk T02
accept $ cost 0
===============================
t1 0/3 is DOWN
Description: Hand-off to PBX
Transmitter is sending remote alarm
Receiver has loss of signal, loss of frame
T1 coding is B8ZS, framing is ESF
FDL type is ANSI
Line build-out is 0dB
No remote loopbacks, No network loopbacks
Acceptance of remote loopback requests enabled
Tx Alarm Enable: rai
Last clearing of counters 3d 15:34:29
loss of frame : 1, current duration 3d 15:34:28
loss of signal : 1, current duration 3d 15:34:28
AIS alarm : 0
Remote alarm : 0
DS0 Status: 123456789012345678901234
XXXXXXXXXXXXXXXXXXXXXXXX
Status Legend: '-' = DS0 is not allocated
'X' = DS0 is allocated (nailed)
Signaling Bit Status: 123456789012345678901234
RxA: ------------------------
RxB: ------------------------
TxA: ------------------------
TxB: ------------------------
123456789012345678901234
Line Status: -- LOS -- Red -- Tx Yellow --
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
30 second input octet rate 0 bytes/sec, frame rate 0 packets/sec
30 second output octet rate 0 bytes/sec, frame rate 0 packets/sec
5 minute input octet rate 0 bytes/sec, frame rate 0 packets/sec
5 minute output octet rate 0 bytes/sec, frame rate 0 packets/sec
Current Performance Statistics:
0 Errored Seconds, 0 Bursty Errored Seconds
0 Severely Errored Seconds, 311 Severely Errored Frame Seconds
311 Unavailable Seconds, 0 Path Code Violations
0 Line Code Violations, 0 Controlled Slip Seconds
0 Line Errored Seconds, 0 Degraded Minutes
TDM group 3, line protocol is not set
Encapsulation is not set
pri 1 is DOWN
Description: pri 1
Switch protocol: National ISDN 2
Signaling role: network (NT) b-channel-restarts enabled
b-channel-restarts: enabled
Calling-party override: disabled
Calling-party presentation: allowed
Calling-party screening: auto
Calling-party number: (no number configured)
Digits transferred all
Name-delivery: disabled
Progress indicator #8 in alerting message: enabled
Progress indicator #2 in connect message: disabled
Progress indicator #1 in setup message: disabled
Progress indicator #3 in setup message: disabled
Progress indicator location: public
resource-selection: circular descending
TBCT: disabled
area code:
Transmission of redirecting numbers is enabled
Redirecting numbers: sent as received
Connected interface: t1 0/3 tdm-group 3
Channel status 123456789012345678901234
--------------------------------
Legend: - = Unallocated . = Inactive
A = Active B channel B = Backup D channel
D = Active D channel M = Maintenance
R = Restart
Last clearing of "show interface" counters: never
0 packets input, 0 bytes, 0 no buffer
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame
0 abort, 0 discards, 0 overruns
0 packets output, 0 bytes, 0 underruns
On the TA 904 (non-E), the T1 0/2 interface is a DSX-1 interface. The transmit and receive pairs are reversed so as to use a straight-through cable to customer equipment.
The TA 908E, has 4 T1 interfaces (no DSX-1 interfaces).
If you are moving a cable from T1 0/2 on the TA 904 to T1 0/3 on the TA 908E, then you will need to cross-over the transmit and receive pair on the cable.
You can look at this guide for the T1 cross-over cable pin-outs: Loopback Adapters and Crossover Cables for T1 and DDS Circuits
Hope this helps,
Patrick
Hello Patrick,
Thank you for the quick response. I'll dispatch to the site and re-try. Thank you!
On the TA 904 (non-E), the T1 0/2 interface is a DSX-1 interface. The transmit and receive pairs are reversed so as to use a straight-through cable to customer equipment.
The TA 908E, has 4 T1 interfaces (no DSX-1 interfaces).
If you are moving a cable from T1 0/2 on the TA 904 to T1 0/3 on the TA 908E, then you will need to cross-over the transmit and receive pair on the cable.
You can look at this guide for the T1 cross-over cable pin-outs: Loopback Adapters and Crossover Cables for T1 and DDS Circuits
Hope this helps,
Patrick
Hello Patrick,
Thank you for the quick response. I'll dispatch to the site and re-try. Thank you!