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New Member

IAD 243x PRI

Hello all,

I can't seem to find any information as far as whether the modular versions of the Cisco IAD like Cisco IAD2431-8FXS will allow you to terminate a SIP trunk and output a PRI.

I was trying to do this on a IAD 2435 but I have been unable to configure the T1 WAN port at all thus far:

LAB-IAD-2435#sh ver
Cisco IOS Software, C2435 Software (C2435-ADVIPSERVICESK9-M), Version 15.1(4)M8, RELEASE SOFTWARE (fc2)

ROM: System Bootstrap, Version 12.4(20r)YA1, RELEASE SOFTWARE (fc1)

System image file is "flash:c2435-advipservicesk9-mz.151-4.M8.bin"

Cisco IAD2435 (MPC8300) processor (revision 0x100) with 249856K/12288K bytes of memory.
Processor board ID FCH1611T041
MPC8300 CPU Rev: Part Number 0x8062, Revision ID 0x11
2 FastEthernet interfaces
8 Voice FXS interfaces
256K bytes of non-volatile configuration memory.
126000K bytes of ATA CompactFlash (Read/Write)



LAB-IAD-2435#sh controllers t1
LAB-IAD-2435#

LAB-IAD-2435(config)#control?
control-plane 

 

Thanks!

4 REPLIES
New Member

Yes it will: http://www.cisco

Yes it will:

 

http://www.cisco.com/c/en/us/td/docs/routers/access/iad2400/2430/software/configuration/guide/sw_conf/scgconf.html

 

Make sure you have an actual T1/E1 port and check that the card-type command has been configured

http://www.cisco.com/c/en/us/td/docs/ios/voice/command/reference/vr_book/vr_c4.html#wp1103424

New Member

Thanks Chester! Your links

Thanks Chester! Your links point me in the right direction. 

I must still be doing something wrong though, or doing unsupported function:

I have two 2435's connected with a T1 crossover cable. I never get successful ISDN negotiation with the PRI configuration. Details are below:

SIP-IN-PRI-OUT#sh isdn status 
Global ISDN Switchtype = primary-ni
ISDN Serial1/0:23 interface
        ******* Network side configuration ******* 
        dsl 0, interface ISDN Switchtype = primary-ni
    Layer 1 Status:
        ACTIVE
    Layer 2 Status:
        TEI = 0, Ces = 1, SAPI = 0, State = AWAITING_ESTABLISHMENT
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Active dsl 0 CCBs = 0
    The Free Channel Mask:  0x800000FF
    Number of L2 Discards = 0, L2 Session ID = 5
    Total Allocated ISDN CCBs = 0
SIP-IN-PRI-OUT#sh isdn status 
Global ISDN Switchtype = primary-ni
ISDN Serial1/0:23 interface
        ******* Network side configuration ******* 
        dsl 0, interface ISDN Switchtype = primary-ni
    Layer 1 Status:
        ACTIVE
    Layer 2 Status:
        TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Active dsl 0 CCBs = 0
    The Free Channel Mask:  0x800000FF
    Number of L2 Discards = 0, L2 Session ID = 6
    Total Allocated ISDN CCBs = 0

 

SIP-IN-PRI-OUT#sh run int serial 1/0:23 

interface Serial1/0:23
 no ip address
 encapsulation hdlc
 isdn switch-type primary-ni
 isdn protocol-emulate network
 isdn incoming-voice voice
 isdn negotiate-bchan resend-setup
 no cdp enable
end

PRI-DELIVERY-IAD#sh run int s1/0:23

interface Serial1/0:23
 no ip address
 encapsulation hdlc
 isdn switch-type primary-ni
 isdn incoming-voice voice
 no cdp enable
end

 

SIP-IN-PRI-OUT#sh controllers t1 1/0
T1 1/0 is up.
  Applique type is Channelized T1
  Cablelength is long gain36 0db
  No alarms detected.
  alarm-trigger is not set
  Soaking time: 3, Clearance time: 10
  AIS State:Clear  LOS State:Clear  LOF State:Clear 
  Framing is ESF, Line Code is B8ZS, Clock Source is Line.
  Data in current interval (164 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

PRI-DELIVERY-IAD#
*Mar  2 02:46:47.173: ISDN Se1/0:23 Q921: User RX <- SABMEp sapi=0 tei=0
*Mar  2 02:46:47.173: ISDN Se1/0:23 Q921: User TX -> UAf sapi=0 tei=0
PRI-DELIVERY-IAD#
*Mar  2 02:46:48.173: ISDN Se1/0:23 Q921: User RX <- SABMEp sapi=0 tei=0
*Mar  2 02:46:48.173: ISDN Se1/0:23 Q921: User TX -> UAf sapi=0 tei=0
PRI-DELIVERY-IAD#
*Mar  2 02:46:49.173: ISDN Se1/0:23 Q921: User RX <- SABMEp sapi=0 tei=0
*Mar  2 02:46:49.173: ISDN Se1/0:23 Q921: User TX -> UAf sapi=0 tei=0

 

SIP-IN-PRI-OUT#
*Mar 15 22:30:24.739: ISDN Se1/0:23 Q921: L2_EstablishDataLink: sending SABME
*Mar 15 22:30:24.739: ISDN Se1/0:23 Q921: Net TX -> SABMEp sapi=0 tei=0
*Mar 15 22:30:25.739: ISDN Se1/0:23 Q921: Net TX -> SABMEp sapi=0 tei=0
SIP-IN-PRI-OUT#
*Mar 15 22:30:26.739: ISDN Se1/0:23 Q921: Net TX -> SABMEp sapi=0 tei=0
*Mar 15 22:30:27.739: ISDN Se1/0:23 Q921: Net TX -> SABMEp sapi=0 tei=0
SIP-IN-PRI-OUT#
*Mar 15 22:30:28.739: ISDN Se1/0:23 Q931: Ux_DLRelInd: DL_REL_IND received from L2

New Member

Looks like you are close -

Looks like you are close - try a shut/no shut on the T1s:

http://www.cisco.com/c/en/us/support/docs/wan/t1-e1-t3-e3/8131-T1-pri.html

This has the details of debug isdn q921, looks like SIP-IN-PRI-OUT is only sending SAMBE and not receiving any.

Hope this helps....

 

 

 

 

New Member

Thanks again I had to add

Thanks again 

I had to add "clock source internal" on SIP-IN-PRI-OUT and "clock source line" on the PRI-DELIVERY-IAD but now the first still alternates between TEI_ASSIGNED & AWAITING_ESTABLISHMENT and the latter shows MULTIPLE_FRAME_ESTABLISHED. I am not sure this is normal behavior. I always thought if one side showed MULTIPLE_FRAME_ESTABLISHED the other would as well...

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