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Community Member

Need help for solving the FXO Problem

Hi All,

I have problem with FXO integration between Toshiba Key Phone System and Cisco 1760V. The lines are always hung, need to reset manually of plug off the fxo lines from router. I have tried all the resources I ever found in cisco website. None can help me.. very frustrated...

somebody can help me, will be very much appreciated

here are some information.

Toshiba---4FXO---1760V------Internet-----1760V---4FXO---Toshiba

cme-spore#sh call active voice br

<ID>: <start>hs.<index> +<connect> pid:<peer_id> <dir> <addr> <state>

dur hh:mm:ss tx:<packets>/<bytes> rx:<packets>/<bytes>

IP <ip>:<udp> rtt:<time>ms pl:<play>/<gap>ms lost:<lost>/<early>/<late>

delay:<last>/<min>/<max>ms <codec>

media inactive detected:<y/n> media cntrl rcvd:<y/n> timestamp:<time>

MODEMPASS <method> buf:<fills>/<drains> loss <overall%> <multipkt>/<corrected>

last <buf event time>s dur:<Min>/<Max>s

FR <protocol> [int dlci cid] vad:<y/n> dtmf:<y/n> seq:<y/n>

<codec> (payload size)

ATM <protocol> [int vpi/vci cid] vad:<y/n> dtmf:<y/n> seq:<y/n>

<codec> (payload size)

Tele <int>:<callID>: tx:<tot>/<v>/<fax>ms <codec> noise:<l> acom:<l> i/o:<l>/<l> dBm

MODEMRELAY info:<rcvd>/<sent>/<resent> xid:<rcvd>/<sent> total:<rcvd>/<sent>/<drops>

speeds(bps): local <rx>/<tx> remote <rx>/<tx>

Proxy <ip>:<audio udp>,<video udp>,<tcp0>,<tcp1>,<tcp2>,<tcp3> endpt: <type>/<manf>

bw: <req>/<act> codec: <audio>/<video>

tx: <audio pkts>/<audio bytes>,<video pkts>/<video bytes>,<t120 pkts>/<t120 bytes>

rx: <audio pkts>/<audio bytes>,<video pkts>/<video bytes>,<t120 pkts>/<t120 bytes>

Telephony call-legs: 1

SIP call-legs: 0

H323 call-legs: 1

MGCP call-legs: 0

Multicast call-legs: 0

Total call-legs: 2

1207 : 8394893hs.1 +723 pid:1 Answer active

dur 01:27:22 tx:250556/5004798 rx:248556/4965442

Tele 2/0:43: tx:5242290/4967550/0ms g729r8 noise:-65 acom:-3 i/0:-44/-47 dBm

1207 : 8395377hs.1 +239 pid:101 Originate 01226 active

dur 01:27:22 tx:248556/4965442 rx:250560/5004878

IP a.b.c.d:18644 rtt:163ms pl:4980130/17470ms lost:0/169/710 delay:56/50/150ms g729r8

media inactive detected:n media contrl rcvd:n/a timestamp:n/a

Telephony call-legs: 1

SIP call-legs: 0

H323 call-legs: 1

MGCP call-legs: 0

Multicast call-legs: 0

Total call-legs: 2

voice-port 2/0

supervisory disconnect anytone

signal groundStart

cptone SG

!

voice-port 2/1

supervisory disconnect anytone

signal groundStart

cptone SG

!

!

!

dial-peer voice 1 pots

destination-pattern 9T

port 2/0

!

dial-peer voice 2 pots

destination-pattern 9T

port 2/1

!

dial-peer voice 100 voip

destination-pattern 801

session target ipv4:a.b.c.d

!

dial-peer voice 101 voip

destination-pattern 01T

session target ipv4:a.b.c.d

!

dial-peer voice 5 pots

destination-pattern 02T

port 2/0

!

dial-peer voice 6 pots

destination-pattern 02T

port 2/1

cme-spore#sh voice port summ

IN OUT

PORT CH SIG-TYPE ADMIN OPER STATUS STATUS EC

========= == ============ ===== ==== ======== ======== ==

2/0 -- fxo-gs up up idle off-hook y

2/1 -- fxo-gs up dorm idle on-hook y

50/0/1 1 efxs up dorm on-hook idle y

50/0/1 2 efxs up dorm on-hook idle y

50/0/2 1 efxs up dorm on-hook idle y

50/0/2 2 efxs up dorm on-hook idle y

thanks alot

-santo-

9 REPLIES
Silver

Re: Need help for solving the FXO Problem

Check this bug: CSCec10776

Try an upgrade of the router if possible.

Community Member

Re: Need help for solving the FXO Problem

hi,

the bug is about 3600 series. mine is 1760V. My IOS version is 12.3.4T. which version should the IOS be upgraded to, in order to solve the problem ?

thanks

-santo-

Silver

Re: Need help for solving the FXO Problem

I had the issue with a 2620 FXO connecting to PSTN. If 2 or 3 calls come through it, it hangs up, and I had to shut/no shut that. I upgraded it to 12.3(2)T5 which solved my problem.

Again, a upgrade might not solve your problem, but it is worth trying at this point after you have tried all docs from Cisco. Try the latest 12.3(4)T4 or 12.3(7)T

Thanks,

Partha

Community Member

Re: Need help for solving the FXO Problem

hi,

have tried to upgrade to both version. I got the same things. any other ways ?

thanks alot

-santo-

Community Member

Re: Need help for solving the FXO Problem

I presume you are connecting to the station ports on the Toshiba... Does it do CPC "calling party control" to indicate that the caller has hungup?

Our Panasonic PBX's do not...

Community Member

Re: Need help for solving the FXO Problem

Hi,

actually I am not so familiar about ke phone system/pbx. My Toshiba is a key phone system, is not PBX.

Thanks

-santo-

Community Member

Re: Need help for solving the FXO Problem

I have the same problem about FXO disconnection with Panasonic PBX.

can you tell me how u solved the problem and your IOS version?

Community Member

Re: Need help for solving the FXO Problem

hi,

i didn't have any luck...have tried to change many IOSes and configurations....but no clue...it's NOT working...i changed to FXS and looks fine

regards

Silver

Re: Need help for solving the FXO Problem

Here is a tech note about FXO disconnect supervision problems, you have scenario 3 from their examples, which they describe as 'the worst possible'

http://www.cisco.com/en/US/partner/tech/tk652/tk653/technologies_tech_note09186a00800ae2d1.shtml

We have had lots of issues with these, with FXO ports connected to the PSTN - if calls come in and get sent to Unity vmail, when the PSTN caller hangs up, there is no way to tell that to Unity, so it records until it times out, and then hangs up, so ports stay engaged at least that long, and then sometimes hang after that, need to reset port to clear. So, if we are ever taking incoming calls on FXO ports, we always order ground start circuits now, and set up disconnect supervision. We just won't install FXO to FXO scenarios, almost sure to be trouble, unless they absolutely know they have disconnect supervision capability.

Mary Beth

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