UC560 T1E1 with Direct TCP SIP

Question

Hi,
Firstly I am new to cisco's voice setup, and have a UC560-T1E1-K9 which I need to configure as just a basic gateway. Essentially i want to setup trunk-to-trunk between ISDN PRI and TCP SIP but do not have the first idea where to start.
The main aim is to receive calls over ISDN PRI (E1 NET5) and pass the call stright through to a direct tcp sip trunk (incoming only).
Then configure FXS for a few numbers for two way calling.
Hope someone can give me a couple of pointers as the CUE is not very helpful
Thanks,
Alex.

Answer 1

Hi,
You have two approaches.
Option A
Use CCA to configure the unit from scratch. Configure the unit for your ISDN connection and test using the fxs ports. Manually configure a SIP dial-peer to route inbound PSTN calls to your Lync server. You'll need to tweak the configuration at various places to make it work. You therefore need to be pretty confident in understanding all the work CCA has done for you. The benefit this, is you have a local outbound dial-plan pre-configured on the unit.
Option B
Configure the unit yourself from scratch. Rough outline:
1. Configure E1 controller for voice
2. Setup the DSP modules for your region
3. configure a pots inbound dial peer to accept calls from the PSTN
4. configure an outbound SIP dial-peer to send the calls to Lync.
Lync expects calls to be prefixed with a + & E.164 and bare in mind the telco may only send you the last 6 sigits of the called number
Here's an example for UK ISDN with 30 timeslots: note module slots will be incorrect in this code, example is generic IOS and not specific to UC560.
1. Configure E1 controller for voice
card type e1 0
network-clock-participate wic 0  ! something like this, you may need to work out which slot you have
network-clock-participate slot 1 ! or something like this
network-clock-select 5 E1 1/0 ! you get the idea....
controller E1 1/0
pri-group timeslots 1-31
interface Serial1/0:15 ! do a show run to check the right interface slot number
description "use dial-peer voice 10 to reach me for outbound"
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn timer T309 400000
isdn incoming-voice modem
isdn T309-enable
isdn send-alerting
isdn sending-complete
no cdp enable
Your E1 card should now be up
c2821.1.hex#show controllers e1
E1 1/0 is up.
  Applique type is Channelized E1 - balanced
  Cablelength is Unknown
  No alarms detected.
  alarm-trigger is not set
  Version info Firmware: 20090408, FPGA: 13, spm_count = 0
  Framing is NO-CRC4, Line Code is HDB3, Clock Source is Line.
  CRC Threshold is 320. Reported from firmware  is 320.
  Data in current interval (652 seconds elapsed):
     0 Line Code Violations, 0 Path Code Violations
     0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
     0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
  Total Data (last 24 hours)
     0 Line Code Violations, 0 Path Code Violations,
     0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
     0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
2. Setup the DSP modules for your region
voice-port 1/0:15
cptone GB
bearer-cap Speech
3. configure a pots inbound dial peer to accept calls from the PSTN
I suggest at this point, you debug isdn q931 and dial in. See how many digits the telco sends you.
Configure a number translation to put this number in to E.164
In my example we take the 6 digits the telco sends us and prepend 441234
voice translation-rule 10
rule 1 /^\(.+\)$/ /441234\1/
voice translation-profile incomingisdn
translate called 10
in exec mode:
SOV_TAG1#test voice translation-rule 10 567890
Matched with rule 1
Original number: 567890 Translated number: 441234567890
Original number type: none      Translated number type: none
Original number plan: none      Translated number plan: none
dial-peer voice 1000 pots
description Inbound POTS dial-peer
translation-profile incoming incomingisdn
incoming called-number .+
direct-inward-dial
port 1/0:15
4. configure an outbound SIP dial-peer to send the calls to Lync. Lync expects calls to be prefixed with a + & E.164 so we're going to add a plus
voice class codec 1
codec preference 1 g711alaw
codec preference 2 g711ulaw
codec preference 3 g729r8
codec preference 4 g729br8
voice translation-rule 20
rule 1 /\(.+\)/ /+\1/
voice translation-profile addaplus
translate called 20
in exec mode
#test voice translation-rule 20 123
Matched with rule 1
Original number: 123    Translated number: +123
dial-peer voice 1010 voip
description SIP Trunk to Lync
translation-profile outgoing addaplus
preference 5
destination-pattern ^441234.+  ! note this is the area code we added to make the number into E164
voice-class codec 1
voice-class sip outbound-proxy ipv4:192.168.10.10 ! ip address of lync
session target dns:lync.mydomain.net ! your lync realm
session protocol sipv2
session transport tcp
dtmf-relay rtp-nte
no vad
and that's about it apart from getting the fx0 ports sorted - one step at a time.
For outbound you added an incoming SIP dial-peer and an outgoing pots dial peer.
Adam
VoIP.co.uk