RBT problem in 8001G SIP phone

[kapil_4596]

We had installed 8001G with OXO connect. when 8001G user dials internal or external outgoing call, if the called party is busy, then in 8001 SIP phone still hearing RBT. There is no call waiting tone, busy tone which tones provided by service provider , but still there is RBT as like phone is ringing ( but actually phone is busy ).
Please suggest what can I do for this.

[alex]

Check SIP traces first.

[kapil_4596]

ISDN Traces


0x05 SETUP Ref: O,14
ie 0xA1 Sending complete
ie 0x04 Bearer capability: 80 90 A3
Coding: CCITT standardized
Information transfer capability: Speech
Transfer mode: Circuit mode
Transfer rate: 64 Kbit/s
User info layer 1: G.711 A-law
ie 0x18 Channel identification: A3
Interface identifier: Implicit
Interface type: Primary rate
Indicated channel: Preferred
D-channel identified: No
Information channel selection: any channel
ie 0x1E Progress indicator: 85 83
Coding: CCITT standardized
Location: Private network serving the remote user
Progress: Origination address is non-ISDN
ie 0x6C Calling party number: 21 80 36 31 32 36 36 30 34 34 35 38
Number type: National number
Numbering plan: ISDN/Telephony(CCITT Recommendation E.164/E.163)
Presentation: presentation allowed
Screening: user-provided, not screened
Number: 6126604458
ie 0x70 Called party number: 81 39 32 35 36 31 32 32 36 30 33
Number type: Unknown
Numbering plan: ISDN/Telephony(CCITT Recommendation E.164/E.163)
Number: 9256122603
ie 0x7D High layer compatibility: 91 81
ISDN3_00228 05/04 14:01:01 RX d_channel: 49 (S:00 T:000) payload: (14) 08 02 80 0E 02 18 03 A9 83 81 1E 02 82 88
0x02 CALL_PROCEEDING Ref: D,14
ie 0x18 Channel identification: A9 83 81
Interface identifier: Implicit
Interface type: Primary rate
Indicated channel: Exclusive
D-channel identified: Yes
Information channel selection: B1 channel
Coding: CCITT standardized
Channel type: B-channel units
Channel number: 0x01
ie 0x1E Progress indicator: 82 88
Coding: CCITT standardized
Location: Public network serving the local user
Progress: In-band information or appropriate pattern now available
SAN_00232 at line 4286 "dnuma.c"
on 05.04 at 14:01:01 (703673323)
info : 0000 000B 0000 0000 0000 0000 0000 0000
ISDN3_00235 05/04 14:01:01 TX d_channel: 49 (S:00 T:000) payload: (49) 08 02 00 0F 05 A1 04 03 80 90 A3 18 01 A3 1E 02 85 83 6C 0C 21 80 36 31 32 36 36 30 34 34 30 34 70 0B 81 39 30 30 36 33 34 35 36 33 35 7D 02 91 81
0x05 SETUP Ref: O,15
ie 0xA1 Sending complete
ie 0x04 Bearer capability: 80 90 A3
Coding: CCITT standardized
Information transfer capability: Speech
Transfer mode: Circuit mode
Transfer rate: 64 Kbit/s
User info layer 1: G.711 A-law
ie 0x18 Channel identification: A3
Interface identifier: Implicit
Interface type: Primary rate
Indicated channel: Preferred
D-channel identified: No
Information channel selection: any channel
ie 0x1E Progress indicator: 85 83
Coding: CCITT standardized
Location: Private network serving the remote user
Progress: Origination address is non-ISDN
ie 0x6C Calling party number: 21 80 36 31 32 36 36 30 34 34 30 34
Number type: National number
Numbering plan: ISDN/Telephony(CCITT Recommendation E.164/E.163)
Presentation: presentation allowed
Screening: user-provided, not screened
Number: 6126604404
ie 0x70 Called party number: 81 39 30 30 36 33 34 35 36 33 35
Number type: Unknown
Numbering plan: ISDN/Telephony(CCITT Recommendation E.164/E.163)
Number: 9006345635
ie 0x7D High layer compatibility: 91 81
ISDN3_00236 05/04 14:01:01 RX d_channel: 49 (S:00 T:000) payload: (14) 08 02 80 0F 02 18 03 A9 83 84 1E 02 82 88
0x02 CALL_PROCEEDING Ref: D,15
ie 0x18 Channel identification: A9 83 84
Interface identifier: Implicit
Interface type: Primary rate
Indicated channel: Exclusive
D-channel identified: Yes
Information channel selection: B1 channel
Coding: CCITT standardized
Channel type: B-channel units
Channel number: 0x04
ie 0x1E Progress indicator: 82 88
Coding: CCITT standardized
Location: Public network serving the local user
Progress: In-band information or appropriate pattern now available
ISDN3_00241 05/04 14:01:03 RX d_channel: 49 (S:00 T:000) payload: (9) 08 02 80 0F 01 1E 02 80 88
0x01 ALERTING Ref: D,15
ie 0x1E Progress indicator: 80 88
Coding: CCITT standardized
Location: User
Progress: In-band information or appropriate pattern now available
ISDN3_00243 05/04 14:01:03 RX d_channel: 49 (S:00 T:000) payload: (9) 08 02 80 0E 01 1E 02 80 88

[kapil_4596]

Please suggest the solution as in this trace 8001 user EDN 458 dialed an external caller 9256122603

[cavagnaro]

alex told you to check sip traces first and you post ISDN ones? why?

[vad]

Ok. In ISDN trace - you have ALERTING. Calling user hear RBT.
Ask provider - send DISCONNECT USER BUSY - in such case.

[kapil_4596]

Thanks VAD,

I asked service provider to send DISCONNECT USER BUSY , but they are not able to do the same.

Is there any other option in our oxo to solve the problem

[vad]

May be exist option - hear in-band information (with ALLERTING we have Progress Id.).

[kapil_4596]

Thanks Vad


can we do anything in OMC for this