Текст целиком
1. DESCRIPTION
Single ring is heard when phone is kept on-hook, if CLIP is enabled with SLI-2 board.
Releases & hardware concerned: From R9.1 with SLI-2 board
2. CAUSE
Short (Single) ring observed is basically used for activating the CLIP resource available. It is usually not heard as a ring as its duration is less than a normal ring. But some phone sets may ring.
3. SOLUTION
It can be resolved by the following procedures:
1 Go to mgr > Shelf > Go down hierarchy > Board > Review/Modify
2 Enter Shelf and Board address of the coupler
3 Change the Protocol Type for CLIP to After a dual tone signal
4 Reset the coupler to reflect the changes in configuration.
4. RESTRICTION
'Noise tone' issue in specific scenario
Once After a dual tone signal configured for Protocol Type for CLIP, if users try to onhook / offhook fast (within 1sec), some kind of noise will be heard instead of the dial tone. Even in this case there is no issue with the call establishment.
The "noise" is exactly a systematic activation signal to keep MWI (LED message) status in the CPU after onhook of a set. The following steps could be used to disable this signal:
For the involved SLI2 board:
1 mgr > Shelf > Board > Review/Modify > Send Init Dynamic Msg: +True
2 mgr > Shelf > Board > Review/Modify > Default Param: +False
3 mgr > Shelf > Board > Dynamic Init Parameters > Review/Modify:
P0: 3
P1: 2
P2: 255
P3: 255
4 Reset the SLI2 board to take the change into account.
Note
The consequence to disable the systematic activation signal is that there will be no status of MWI (LED message) kept in the CPU, hence the phone set will have only its latest MWI (LED message) status.
For example, if disconnect the phone set and reconnect it back to OmniPCX Enterprise, the previous MWI (LED message) status which should be there with systematic activation signal for MWI (LED message) will not be kept anymore.
This modification (with GD3) can only be done after R9.1 patch I1.605.26, as there was an issue that the Init Dynamic Params cannot be taken into account, which fixed in GD3 binary version 3.34 embedded in I1.605.26.
