Problem;
Running a pm3, 2 PRIs and ComOs 3.7.2c3. All ISDN outbound local calls
work (XXX-XXXX). All long distance calls fail when either a 1 prefix or no
1 prefix is added (XXX-XXX-XXXX or 1-XXX-XXX-XXXX)....
Switch is a GTD5 running NI-2.
When the setup message is sent with a long distance number and no 1
prefix, the switch sends back a disconnect, normal clearing ...
When the setup message is sent with a long distance number *with* a 1
prefix, the switch sends back a call proceeding followed by a call
progress and then silence .....
Looks like the 1 prefix works "better" ...
The CO did a trace on a call with the 1 prefix:
M 05 SETUP
I 04 BEARER CAPABILITY.......Len= 4
88 Coding Standard............CCITT
Transfer Capa....Unrestr digital
90 Transfer Mode............Circuit
Transfer Rate..........64 kbit/s
21 Layer 1 Protocol...rate adaption
8F User Rate..............56 kbit/s
I 18 CHANNEL ID...............Len= 3
A9 Indicated Channel......Exclusive
Channel Selection............B11
Channel Identifier......Not D-CH
I 70 CALLED PARTY NUMBER.....Len= 12
C1 Type of number......Local Number
Numbering Plan ID...........ISDN
18085229809
Hex: 00 01 D0 D6 08 02 00 16 05 04 04
88 90 21 8F 18 03 A9 83 8B 70 0C
C1 31 38 30 38 35 32 32 39 38 30
39
I don't know what "Local Number" means for the Type of Number field element.
The q.931 draft I have dosn't list it (too cheep to buy the real spec :-).
I assume it is the same as Type of Number=Unknown, which is listed in the
draft. If that's the case, then the switch should recognise the prefix
of 1 and properly process the call - at least per this draft.
Does the pm03 always send a Type of Number=Unknown? Is there a way to
make it send Type of Number=National? If it *always* sends type Unknown,
then the switch should properly interpet the 1 prefix and process the
call, correct?
If that's the case, it's in GTEs switch. They understand this, I just
need to verify so I don't send them on a wild goose chase.
The GTE techs think that I might *have to* send a long distance number
with no 1 prefix and set the Type of Number to National (which, of course
works for them).
Thanks;
--------
John Breeden
Kailua-Kona, Hawaii
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