International Calling Problem

[williams.jeff]

I am unable to make int'l calls from my system. At first I thought it was the carrier, but the more I test the less sure I am because I have run 931 debug at several branches and am seeing the same thing:

Jun 16 17:19:33.273 EDT: ISDN Se4/0:23 Q931: TX -> SETUP pd = 8 callref = 0x0368

Bearer Capability i = 0x8090A2

Standard = CCITT

Transer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98396

Exclusive, Channel 22

Display i = 'Jeff Williams'

Calling Party Number i = 0x0081, 'xxxxxxxxxx'

Plan:Unknown, Type:Unknown

Called Party Number i = 0x91, '011441142024150'

Plan:ISDN, Type:International

Jun 16 17:19:33.309 EDT: ISDN Se4/0:23 Q931: RX <- CALL_PROC pd = 8 callref = 0x8368

Channel ID i = 0xA98396

Exclusive, Channel 22

Jun 16 17:19:33.309 EDT: ISDN Se4/0:23 Q931: RX <- PROGRESS pd = 8 callref = 0x8368

Cause i = 0x829F - Normal, unspecified

Progress Ind i = 0x8488 - In-band info or appropriate now available

Jun 16 17:19:35.020 EDT: ISDN Se4/0:23 Q931: TX -> DISCONNECT pd = 8 callref = 0x0368

Cause i = 0x8090 - Normal call clearing

Jun 16 17:19:35.056 EDT: ISDN Se4/0:23 Q931: RX <- RELEASE pd = 8 callref = 0x8368

Jun 16 17:19:35.128 EDT: ISDN Se4/0:23 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x0368

The number in this debug is just for test- it's for BT. Why would several different LECs react the same way unless there's something common (and wrong) in CCM?

My configuraton is very straight forward: my route filter is (international-access) exists, and my route pattern is 9.@, discard predot.

Any help is greatly apprciated!

Also, any international test numbers would be welcome, too.

Jeff

[paul.harrison]

Jeff,

The debug shows that you hung up the call not the carrier, as you are the first to send a disconnect message.

It's probably because nothing happened for almost 2 seconds, so call manager hung up. This is the T310 timeout that has expired, try increasing this to something silly like 30 seconds, or as high as you can get it.

BTW you may also want to set your plan and type to unknown, as this can often lead to problems.

see http://www.zytrax.com/tech/protocols/isdn/timers.html

for a list of ISDN timers.

Paul

[NAVIN PARWAL]

I am having the same problem.

We have Verizon for local and AT&T for long distance and international.

We can call local and lD, but not international.

I was looking at your debug and your bebug shows that you are senting an international call, My debugs do not show that and that is why the carrier is dropping them, Verizon is telling me that they need to see international in callsetup for them to send the call to AT&T, I have tried unknown, but it did not help.

I was told by verizon, to set gateway settings to NATIONAL and ISDN, as soon as i did that international did not work, before that international worked by caller id did not.

so now i am stuck, either i get caller id or international.

any ideas? my isdn q931 debug shows that " no route to destination" error.

[NAVIN PARWAL]

Here is the output:

5w3d: ISDN Se1/0:23 Q931: TX -> SETUP pd = 8 callref = 0x013E

Bearer Capability i = 0x8090A2

Standard = CCITT

Transer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98397

Exclusive, Channel 23

Facility i = 0x9F8B0100A10F02010106072A8648CE1500040A0100

Protocol Profile = Networking Extensions

0xA10F02010106072A8648CE1500040A0100

Component = Invoke component

Invoke Id = 1

Operation = InformationFollowing (calling_name)

Name information in subsequent FACILITY message

Progress Ind i = 0x8083 - Origination address is non-ISDN

Calling Party Number i = 0x2181, '2403141329'

Plan:ISDN, Type:National

Called Party Number i = 0xA1, '011911126843576'

Plan:ISDN, Type:National

5w3d: ISDN Se1/0:23 Q931: RX <- RELEASE_COMP pd = 8 callref = 0x813E

Cause i = 0x8282 - No route to specified network

[chrisb]

most telcos do not want to see 'international' and '011' in the same breath. strip the '011' off the call, and it should go through.

[NAVIN PARWAL]

So you are telling me that i should dial an international number without the 011?? how would the telco know that it is an international call??

Thanks

[Steven Smith]

if you add the 011, you should not tag as international, you should tag as national. You can send international calls without the 011 and tag the call as international. Look at the previous calls. Some have National and some have International in the q.931 messages. What I have seen work the most often is to tag all calls as national and send the 011 on international calls.

[NAVIN PARWAL]

I tried what you suggested, but got the same results:

UMBI-CMM-CARB1B#

5w5d: ISDN Se1/0:23 Q931: TX -> SETUP pd = 8 callref = 0x02AC

Bearer Capability i = 0x8090A2

Standard = CCITT

Transer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98397

Exclusive, Channel 23

Facility i = 0x9F8B0100A10F02010106072A8648CE1500040A0100

Protocol Profile = Networking Extensions

0xA10F02010106072A8648CE1500040A0100

Component = Invoke component

Invoke Id = 1

Operation = InformationFollowing (calling_name)

Name information in subsequent FACILITY message

Progress Ind i = 0x8083 - Origination address is non-ISDN

Calling Party Number i = 0x2181, '2403141329'

Plan:ISDN, Type:National

Called Party Number i = 0xA1, '011911126843576'

Plan:ISDN, Type:National

5w5d: ISDN Se1/0:23 Q931: RX <- RELEASE_COMP pd = 8 callref = 0x82AC

Cause i = 0x8282 - No route to specified network

[chrisb · Accepted solution]

You need to configure CM to strip the 011, but keep the international flag. If telco sees the international flag, they don't want to see 011 and vice versa. Telco will add the 011 when the internationa flag is set. I have had best luck stripping the 011 off and keeping the international flag. From my experience, it's what the carriers like to see.

[williams.jeff]

I admit I was very suspicious of this... but I know I don't know everything so I tried it anyway. I set the route pattern (9.@) to discard 'PreDot IntlAccess IntlDirectDial' and it worked like a champ. Still dialing the exact same number (9011...).

Jun 21 11:10:18.994 EDT: ISDN Se4/0:23 Q931: TX -> SETUP pd = 8 callref = 0x0485

Bearer Capability i = 0x8090A2

Standard = CCITT

Transer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98397

Exclusive, Channel 23

Display i = 'Jeff Williams'

Calling Party Number i = 0x0081, 'xxxxxxxxxx'

Plan:Unknown, Type:Unknown

Called Party Number i = 0x91, '441142024150'

Plan:ISDN, Type:International

Jun 21 11:10:19.050 EDT: ISDN Se4/0:23 Q931: RX <- CALL_PROC pd = 8 callref = 0x8485

Channel ID i = 0xA98397

Exclusive, Channel 23

Jun 21 11:10:24.313 EDT: ISDN Se4/0:23 Q931: RX <- ALERTING pd = 8 callref = 0x8485

Progress Ind i = 0x8488 - In-band info or appropriate now available

Jun 21 11:10:27.996 EDT: ISDN Se4/0:23 Q931: TX -> DISCONNECT pd = 8 callref = 0x0485

Cause i = 0x8090 - Normal call clearing

Jun 21 11:10:28.032 EDT: ISDN Se4/0:23 Q931: RX <- RELEASE pd = 8 callref = 0x8485

Jun 21 11:10:28.104 EDT: ISDN Se4/0:23 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x0485

Thanks a bunch!

Jeff