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New Member


Centralized CCM cluster with 2 locations. We want to set up tollbypass from each other. Let's say cityA and B. City A's area code is 603, B is 405. City B IP phone call A's PSTN through IP WAN as a tollbypass, vice versa. In order to make consistency, we still will let user dial 91604 to reach the city A PSTN user. Obiously I have to strip off 91 before the call offnet to city A pstn. My question is here: in route pattern or route group, ccm only can strip off the digits before . or @ or something else, not 91. All the router are running MGCP. How can I strip 91 off? Or I just use transform?

New Member

Re: Tollbypass

1) MGCP --> In your route list, your discard digits should be set to "PreAT 11D->10D" to strip the 9 and the 1 to only send 10 digits to telco.

2) H323--> Your dial peers can be made to strip anything you'd like. In your CM route list, discard nothing. On the gateway, match on, say 91.......... The destination pattern will automatically strip the 91 and send everything else.

Hope that helps a little.

New Member

Re: Tollbypass

Thanks a lot. It looks good, I'll take a try.

New Member

Re: Tollbypass

I just got a chance to test but no luck. I used either PreAt 11D->10D or PreDot 11D->10D. Debug shows 1 is not stipped and I hear the message from the phone says this is a local no 1 needede.

Here is bebug.The work around now is to use transform 1514XXXXXXX to 514XXXXXXXX. but if anybody has this experience I would like to hear that.

08:50:45.096: ISDN Se2/0:23 Q931: TX -> SETUP pd = 8 callref = 0x000B

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 = 'test'

Calling Party Number i = 0x0081, '5147897940'

Plan:Unknown, Type:Unknown

Called Party Number i = 0x80, '15148562323'

Plan:Unknown, Type:Unknown

*Mar 6 08:50:45.180: ISDN Se2/0:23 Q931: RX <- STATUS pd = 8 callref = 0x800B

Cause i = 0x80E428 - Invalid information element contents

Call State i = 0x01

*Mar 6 08:50:45.180: ISDN Se2/0:23 Q931: RX <- CALL_PROC pd = 8 callref = 0x80


Channel ID i = 0xA98397

Exclusive, Channel 23

*Mar 6 08:50:45.228: ISDN Se2/0:23 Q931: RX <- PROGRESS pd = 8 callref = 0x800


Cause i = 0x80FF - Interworking error; unspecified

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