Hey,
i have a problem with the call establishment process. Sometimes, the caller did not receive a ringback instantly. It takes round about 15 seconds until the caller gets the ringback.
Oct 19 12:02:01: ISDN Se0/0/0:15 Q931: RX <- SETUP pd = 8 callref = 0x6245
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA9839D
Exclusive, Channel 29
Calling Party Number i = 0x2181, 'XXXXXXXX'
Plan:ISDN, Type:National
Called Party Number i = 0xC1, 'XXXXXX'
Plan:ISDN, Type:Subscriber(local)
High Layer Compat i = 0x9181
Oct 19 12:02:01: ISDN Se0/0/0:15 Q931: Received SETUP callref = 0xE245 callID = 0x0159 switch = primary-net5 interface = User
Oct 19 12:02:01: ISDN Se0/0/0:15 Q931: TX -> SETUP_ACK pd = 8 callref = 0xE245
Channel ID i = 0xA9839D
Exclusive, Channel 29
Oct 19 12:02:16: ISDN Se0/0/0:15 Q931: TX -> CALL_PROC pd = 8 callref = 0xE245
Oct 19 12:02:16: ISDN Se0/0/0:15 Q931: TX -> ALERTING pd = 8 callref = 0xE245
Oct 19 12:02:21: ISDN Se0/0/0:15 Q931: TX -> CONNECT pd = 8 callref = 0xE245
Oct 19 12:02:21: ISDN Se0/0/0:15 Q931: RX <- CONNECT_ACK pd = 8 callref = 0x6245
Oct 19 12:02:21: %ISDN-6-CONNECT: Interface Serial0/0/0:28 is now connected to 274 N/A
Oct 19 12:03:43: ISDN Se0/0/0:15 Q931: RX <- DISCONNECT pd = 8 callref = 0x6245
Cause i = 0x8090 - Normal call clearing
Progress Ind i = 0x8288 - In-band info or appropriate now available
Oct 19 12:03:43: %ISDN-6-DISCONNECT: Interface Serial0/0/0:28 disconnected from 5219471362080 , call lasted 82 seconds
Oct 19 12:03:43: ISDN Se0/0/0:15 Q931: call_disc: PI received in disconnect; Postpone sending RELEASE for callid 0x159
But this is only at some callers and it does not matter if they have isdn or non-isdn
############### Config
isdn switch-type primary-net5
!
!
voice call send-alert
voice call disc-pi-off
voice rtp send-recv
!
voice service voip
allow-connections h323 to h323
allow-connections h323 to sip
allow-connections sip to h323
h323
!
voice class codec 1
codec preference 1 g711alaw
codec preference 2 g711ulaw
codec preference 3 g729r8
!
translation-rule 1
Rule 1 ^0 10
Rule 2 222 88000
!
!
translation-rule 2
Rule 0 ^.% 00 national national
Rule 1 ^.% 000 international international
Rule 2 ^.% 0 subscriber subscriber
!
!
!
!
!
!
!
!
!
interface GigabitEthernet0/0
ip address 192.168.19.3 255.255.255.0
duplex auto
speed auto
!
interface GigabitEthernet0/0.18
encapsulation dot1Q 18
ip address 192.168.18.3 255.255.255.0
!
interface GigabitEthernet0/0.20
encapsulation dot1Q 20
ip address 192.168.20.3 255.255.255.0
h323-gateway voip interface
h323-gateway voip bind srcaddr 192.168.20.3
!
interface Service-Engine0/1
ip unnumbered GigabitEthernet0/0.20
service-module ip address 192.168.20.9 255.255.255.0
service-module ip default-gateway 192.168.20.3
!
interface GigabitEthernet0/1
ip address 192.168.1.3 255.255.255.0
duplex auto
speed auto
!
interface Serial0/0/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn overlap-receiving
isdn incoming-voice voice
isdn send-alerting
isdn sending-complete
no cdp enable
!
router rip
network 192.168.1.0
network 192.168.20.0
!
ip forward-protocol nd
ip http server
ip http authentication local
ip http secure-server
ip http path flash:
!
!
ip route 0.0.0.0 0.0.0.0 192.168.1.1
ip route 192.168.20.9 255.255.255.255 Service-Engine0/1
!
control-plane
!
!
voice-port 0/0/0:15
translation-profile incoming amt-rein
translate calling 2
translate called 1
no comfort-noise
cptone DE
timeouts interdigit 3
!
dial-peer voice 11 pots
tone ringback alert-no-PI
destination-pattern 0T
progress_ind setup enable 3
progress_ind progress enable 8
progress_ind connect enable 8
incoming called-number .T
direct-inward-dial
port 0/0/0:15
!
dial-peer voice 300 mmoip
service fax_on_vfc_onramp_app out-bound
destination-pattern 9...
information-type fax
session target mailto:$d$@XXXXXXX.local
image encoding MH
image resolution fine
dsn failure
!
dial-peer voice 301 pots
service onramp-sffax
incoming called-number 9...
direct-inward-dial
!
dial-peer voice 401 voip
description incoming from CUCM
incoming called-number .
codec g711ulaw
!
dial-peer voice 500 voip
description ** Verb. zu CUCM **
destination-pattern .T
session target ipv4:172.16.1.3
incoming called-number .
voice-class codec 1
dtmf-relay h245-alphanumeric
no vad
!
