04-21-2010 03:00 PM
Hi,
Actually, I have for voice only the Cisco router connected to Avaya PBX with one E1 port for incoming/outgoing calls with g711ulaw code, they are working well, but I’m having problems with the DSP/Ch 0/1:1 when it’s blocked. I see that when this DSP/Ch is blocked the users start to have problems for making calls. On this moment the DSP/Ch 0/1:1 has one call that is not used anymore. I see this port blocked with different numbers.
Fort fixing it I need to reboot the E1 port.
Do you have any idea how I can block this DSP/Ch for testing?.
Router Name#sh voice call status
CallID CID ccVdb Port DSP/Ch Called # Codec Dial-pee
rs
0x1AC43 25B9 0x47DDB8E4 0/1/1:1.22 0/1:1 5001 g711ulaw 1/200
1 active call found
Thank you, best regards, Luis.
04-21-2010 09:26 PM
Yes, you can busy out individual B channels on a PRI gateway from within the CUCM Service Parameters.
Go to CCM Service Parameters > Advanced > Clusterwide Parameters (Device - PRI and MGCP Gateway) > Change B-Channel Maintenance Status 1.
You can busy out up to 5 channels at once as there are 5 configs for maintenance.
The parameters are:
This parameter allows Cisco CallManager to change individual B-Channel maintenance status for PRI and CAS interfaces in real time for troubleshooting. Input Format: Device Name = B-channel Maintenance Status Example: S0/DS1-0@SDA123456789ABC = 0000 1111 0000 0000 0000 0001 (24 bits for T1. Channel number begins with 1 to 24 from left to right. In the case of PRI, the last bit specifies the D-Channel, which does not get affected. In this example, the 5th through 8th B-Channels are out of service.) or, S1/DS1-0@DLS2-CM136-VG200-2.SELSIUSCMLAB.CISCO.COM = 0000 0000 0000 0000 0000 0000 1111 1111 (32 bits for E1. B-Channel number begins with 1 to 32 from left to right. The 16th channel specifies the D-Channel. The last bit does not affect any channel. In this example, the 25th through 31st channels are marked out of service.) Explanation: The Device Name as specified in the Gateway Configuration page in Cisco CallManager Administration MUST exactly match the gateway name that this field specifies. To avoid any manual inputting mistake, copy the Device Name from Cisco CallManager Administration and paste it into this service parameter. "=" is mandatory and unique to distinguish the Device Name and B-Channel Maintenance Status fields. BCHANNEL MAINTENANCE STATUS = xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx Where x can be: 0 -- In service 1 -- Graceful out of service (Change channel status until active call ends if an active call exists on that channel.) 2 -- Forceful out of service (Tear down active call first; then, change channel status immediately if an active call exists on that channel.) Because values other than 0,1, or 2 are invalid, the system ignores them. Make sure that the total number of 'x' is either 24 for T1 or 32 for E1. Any other invalid length or mismatch (for example, 24 for E1) gets treated as error, and no action gets taken for that device. SPACE: Optional. The spaces between device name and "=", between '=' and BCHANNEL MAINTENANCE STATUS, and between x and x, are all optional. You cannot use any space inside the DEVICE NAME field. PRI Specific: To use this feature, the Enable status poll check box must be checked on the PRI Gateway Configuration window. If it is not, you need to check the check box, click Update, and reset the gateway for the service parameter change to take effect. |
04-22-2010 06:11 AM
Hi,
Thanks !, but I´m not using CCM on this voice network. Do you have another idea ?.
04-22-2010 06:19 AM
Sorry, I don't know of a way to busy out a B-channel from IOS. You may need to look into how granular you can be with Avaya in controlling the E1 channels.
Good luck.
Hailey
04-23-2010 09:45 AM
Thanks Hailey !
Someone has any idea about it ?.
04-29-2010 01:10 AM
Luis,
I have not used this, but if you haven't also you can try to test "isdn busy b_channel" command under the corresponding serial interface configuration and see what happens.
01-27-2011 10:56 AM
Would ds0 busyout command work?
controller t1 0/0/0
router(config-controller)#ds0 ?
busyout To busyout a range of ds0 CAS timeslots
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