Dear All,
Two Cisco routers are connected as follows:
VoIP--> R1 -->ISDN--> R2 -->VoIP
Appreciate any ideas or recommendations to get successful calls from R1 to R2?
The Problem: When the call leaves R1 to R2 over the ISDN link in between i see the call coming on R2 and then disconnected with the following disconnect reason:
Cause i = 0x82E6 - Recovery on timer expiry
R1 config:
---------------
!
interface Serial4/0:15
no ip address
encapsulation hdlc
no logging event link-status
isdn switch-type primary-net5
isdn overlap-receiving T302 5000
isdn protocol-emulate network
isdn incoming-voice voice
no cdp enable
!
dial-peer voice 10 pots
preference 1
destination-pattern 000T
progress_ind alert enable 8
direct-inward-dial
port 4/0:15
!
dial-peer voice 11 pots
preference 3
destination-pattern .T
progress_ind alert enable 8
direct-inward-dial
port 4/0:15
forward-digits 5
!
R2 config:
--------------
!
interface Serial2/0:15
no ip address
encapsulation hdlc
no logging event link-status
isdn switch-type primary-net5
isdn overlap-receiving T302 4000
isdn incoming-voice voice
isdn send-alerting
isdn sending-complete
no cdp enable
!
dial-peer voice 99 pots
tone ringback alert-no-PI
preference 2
destination-pattern .T
progress_ind setup enable 3
progress_ind alert enable 8
progress_ind progress enable 1
progress_ind connect enable 1
incoming called-number .T
no digit-strip
direct-inward-dial
port 2/0:15
!
dial-peer voice 100 voip
destination-pattern 89...
progress_ind setup enable 3
progress_ind progress enable 1
progress_ind connect enable 1
voice-class codec 1
session target ipv4:10.1.1.2
incoming called-number .T
no vad
!
Debug isdn q931 from R2
------------------------------------
*May 7 13:39:25.129: ISDN Se2/0:15 Q931: RX <- SETUP pd = 8 callref = 0x014D
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98381
Exclusive, Channel 1
Net Specific Fac i = 0x00E2
Calling Party Number i = 0x2181, '4364574474'
Plan:ISDN, Type:National
Called Party Number i = 0xA1, '89222'
Plan:ISDN, Type:National
*May 7 13:39:25.133: ISDN Se2/0:15 Q931: TX -> SETUP_ACK pd = 8 callref = 0x814D
Channel ID i = 0xA98381
Exclusive, Channel 1
*May 7 13:39:34.841: ISDN Se2/0:15 Q931: RX <- DISCONNECT pd = 8 callref = 0x014D
Cause i = 0x82E6 - Recovery on timer expiry
*May 7 13:39:34.845: ISDN Se2/0:15 Q931: TX -> RELEASE pd = 8 callref = 0x814D
*May 7 13:39:34.853: ISDN Se2/0:15 Q931: RX <- RELEASE_COMP pd = 8 callref = 0x014D
--------------------------
Any ideas or recommendations to get successful calls from R1 to R2?
Thanks in advance.
