Добрый день. Схема следующая:

[FXS][cisco 2811]---ISDN PRI---[cisco 2811]

при подключении к FXS порту телефона модем на второй 2811 поднимает трубку, но в трубке тишина (((

что надо подкрутить, чтобы услышать характерный писк ? :-)

конфиги:

!
controller E1 0/2/0
framing NO-CRC4
pri-group timeslots 1-2,16
!
!
interface Serial0/2/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-qsig
isdn incoming-voice modem
no cdp enable
!
!
dial-peer voice 1 pots
destination-pattern 555
port 0/3/0
!
!
voice-port 0/3/0
cptone RU
!
!
dial-peer voice 888 pots
destination-pattern .T
port 0/2/0:15
!

циска с модемной платой (36 port PVDMII digital modem PVDM daughter card)

!
controller E1 1/0
framing NO-CRC4
pri-group timeslots 1-2,16
!
!interface Serial1/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-qsig
isdn timer T310 120000
isdn not-end-to-end 64
isdn protocol-emulate network
isdn incoming-voice modem
no cdp enable
!

line 0/322 0/357
modem InOut

debug isdn q931:
*Jul 23 06:27:45.367: ISDN Se1/0:15 Q931: RX <- SETUP pd = 8 callref = 0x008B
Bearer Capability i = 0x9090A3
Standard = CCITT
Transfer Capability = 3.1kHz Audio
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98382
Exclusive, Channel 2
Progress Ind i = 0x8183 - Origination address is non-ISDN
Calling Party Number i = 0x0080, '555'
Plan:Unknown, Type:Unknown
Called Party Number i = 0x80, '123'
Plan:Unknown, Type:Unknown
*Jul 23 06:27:45.407: %ISDN-6-CONNECT: Interface Serial1/0:1 is now connected to 555 N/A
*Jul 23 06:27:45.407: ISDN Se1/0:15 Q931: TX -> CALL_PROC pd = 8 callref = 0x808B
Channel ID i = 0xA98382
Exclusive, Channel 2
*Jul 23 06:27:45.411: ISDN Se1/0:15 Q931: TX -> ALERTING pd = 8 callref = 0x808B
*Jul 23 06:27:45.411: ISDN Se1/0:15 Q931: TX -> CONNECT pd = 8 callref = 0x808B

*Jul 23 06:27:45.419: ISDN Se1/0:15 Q931: RX <- CONNECT_ACK pd = 8 callref = 0x008B
*Jul 23 06:28:55.551: %ISDN-6-DISCONNECT: Interface Serial1/0:1 disconnected from 555 , call lasted 70 seconds
*Jul 23 06:28:55.551: ISDN Se1/0:15 Q931: TX -> DISCONNECT pd = 8 callref = 0x808B
Cause i = 0x8290 - Normal call clearing
*Jul 23 06:28:55.559: ISDN Se1/0:15 Q931: RX <- RELEASE pd = 8 callref = 0x008
*Jul 23 06:28:55.563: ISDN Se1/0:15 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x808B

sh modem log:
Modem 0/322 V12: Event Log contains 42 Events:
00:05:05.376 Boot: Download FPGA
00:04:55.376 Boot: Bootstrap Ready
00:04:52.404 Boot: NiOS Download Ack
00:04:52.396 NiOS: Modem Count Ack
00:04:47.384 NiOS: V12 FW Download Ack
00:03:47.352 NiOS: Modem Start Ack
00:03:47.352
00:03:47.196 CSM: event-MODEM_DISCONNECTED New State-BAD_STATE
00:03:47.196 Ntf: CHANSTATUS
00:03:46.812 NiOS: Modem Start Ack
00:03:46.808 Ntf: DTEREQ
00:03:46.808 NiOS: Modem Start Ack
00:03:46.772 Ntf: CMDREQ
00:03:46.772 Cmd: CMDDAT Config Change 04 A0D 384D 3330 7878 4120 796E 6F50 7472 00
00:03:46.772
00:03:46.772
00:03:46.768 Ntf: CONFIGACK
00:03:46.768 Ntf: DCERPT
00:03:46.764 Ntf: CMDDAT Config Acknowledge Pass
00:03:46.764 Ntf: CMDREQ
00:04:05.076 Cmd: CMDDAT Config Change ATS 5B 0D DF 17
00:04:05.608 Ntf: CMDDAT Config Acknowledge ATS Pass Pass
00:04:05.680 Ntf: CMDREQ
00:03:39.560 CSM: Incoming call from 555 to 123
00:03:39.560 CSM: event-ISDN_CALL New State-IC_MODEM_RESERVED CSM: status-1 dchan-1/0 bchan-1
00:03:39.632 Cmd: PCMENCODE
00:03:39.668 Cmd: CMDDAT Config Change ATS 5B 0D DF 17
00:03:39.740 CSM: event-ISDN_CONNECTED New State-WAIT_FOR_CARRIER
00:03:39.728 CSM: event-CSM_EVENT_MODEM_SETUP New State-WAIT_FOR_CARRIER
00:03:39.764 Ntf: PCMENCODE
00:03:39.800 Ntf: CMDDAT Config Acknowledge ATS Pass Pass
00:03:39.864 Ntf: CMDREQ
00:03:39.888 Cmd: LINECON
00:03:40.328 Ntf: ANSDET
00:02:30.488 Ntf: HGUPDET
00:02:31.600 CSM: event-MODEM_DISCONNECTED New State-WAIT_FOR_CARRIER
00:02:41.508 Cmd: CMDDAT Statistic--Call Summary Information

00:02:41.952 Ntf: HGUPDN Disconnect Reason 22
00:02:42.112 CSM: event-QUEUED_DISCONNECT New State-IDLE_STATE
00:02:42.300 Ntf: CMDDAT Statistic--Call Summary Information
Disconnect reason 22 No connection established
Retrain/rate renegotiate reason 0 None
Connection time (hours) 0
Connection time (minutes) 0
Connection time (seconds) 0
Initial receive speed 0 0-300
Initial transmit speed 0 0-300
Maximum receive speed 0 0-300
Maximum transmit speed 0 0-300
Minimum receive speed 0 0-300
Minimum transmit speed 0 0-300
Max retransmit for one frame 0
Total retransmit during connect 0
Minimum EQM 255
Maximum EQM 0
Negative EQMs 0
Minimum SNR 0 429496715 dB
Maximum SNR 0 429496715 dB
Retrains requested locally 0
Retrains requested remotely 0
Rate renegotiation req locally 0
Rate renegotiation req remotely 0

00:02:56.708 Ntf: CMDREQ
00:02:55.872 CSM: event-ASYNC_DTR_DOWN New State-IDLE_STATE