RE: [Asterisk-Users] WM Wink timings for Nortel
I had a simular problem receiveing EM Wink dtmf signals from a MITEL sx200 digital. I had a 10% or so problem with astrisk line timing out before all the digits were dialed. I tried all the time outs and even messed with the timing of my MITEL switch. It turned out that the problems was solved by setting the emdigitwait variable in zapata.conf. I set mine to emdigitwait=600 and have had 0% dialing timeouts. This is a fairly new variable setting I think after 1.0.3. Before this it was a constant you would have to modify in chan_zap.c . If you google for asterisk emdigitwait you'll track down more information. -- From: Eric Wieling[SMTP:[EMAIL PROTECTED] Reply To: Asterisk Users Mailing List - Non-Commercial Discussion Sent: Friday, February 18, 2005 6:54 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject:Re: [Asterisk-Users] WM Wink timings for Nortel Rich Adamson wrote: My guess is the asterisk implementation for EM signaling is probably one end of that interface, watching the signaling bits and translating those into something * can use to terminate the call. However, I'll be the first to admit I'm not a programmer and probably wouldn't recognize the code even if I seen it. Highly unlikely it is a fully-baked EM emulation, and even higher probability the code can not source an EM call. Do you know if the incoming DID digits are actually dtmf, or is it possible the digits are dial pulse on the E lead? (I'd have to guess dial pulse from the looks of those messages.) Since I have not personally heard of anyone actually using it, I'd have to guess that resolving the problem will boil down to writing debug code into asterisk, and then writing code that supports your needs. Or, change the interface from asterisk to the Nortel to some other trunking arrangement. Calls are working SOME of the time. The CLEC is sending DTMF, I've confirmed that. We can source EM Wink calls, we cannot receive them reliability from the CLEC. I'll be playing with the various timing options this evening. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
EM is analogue, not digital... Not true. You can have EM signaling on a T1 CAS interface. Likewise T1 CAS interfaces can also be setup for FXS and FXO signaling. This is just how the robbed bits communicate. With EM wink before a remote switch sends a call to a local switch it send a very 0/1 transition on the A bit. When the local switch sees the wink it is supposed to respond with its own wink back at the originating switch. Then and only then is the call sent over and DTMF is sent inband. On T1s this wink parameter is tunable and you should be able to set the wink pulse width and timing. I suspect that the Digium card either isnt answering the wink or is sending it with the incorrect timing or pulse width. The best way to troubleshoot this is to place a T1 analyzer on the line such as Fireberd. They can be rented for a day from Electrorent. Also, you may want to see if you can setup the T1 span for immediate-start. This would mitigate any wink problems. For more info on how T1s work with voice see: http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a00800e2560.shtml ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[Asterisk-Users] WM Wink timings for Nortel
Does anyone know the default EM Wink timings for Nortel DID ports? The default settings on Asterisk are: ;prewink: Pre-wink time (default 50ms) ;preflash:Pre-flash time (default 50ms) ;wink:Wink time (default 150ms) ;flash: Flash time (default 750ms) ;start: Start time (default 1500ms) ;rxwink: Receiver wink time (default 300ms) ;rxflash: Receiver flashtime (default 1250ms) ;debounce:Debounce timing (default 600ms) ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
I assume the defaults do not work? I've successfully used the defaults with Avaya and Mitel switches with no problems. On Fri, 18 Feb 2005 10:04:09 -0600, Eric Wieling [EMAIL PROTECTED] wrote: Does anyone know the default EM Wink timings for Nortel DID ports? The default settings on Asterisk are: ;prewink: Pre-wink time (default 50ms) ;preflash:Pre-flash time (default 50ms) ;wink:Wink time (default 150ms) ;flash: Flash time (default 750ms) ;start: Start time (default 1500ms) ;rxwink: Receiver wink time (default 300ms) ;rxflash: Receiver flashtime (default 1250ms) ;debounce:Debounce timing (default 600ms) ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
Does anyone know the default EM Wink timings for Nortel DID ports? The default settings on Asterisk are: ;prewink: Pre-wink time (default 50ms) ;preflash:Pre-flash time (default 50ms) ;wink:Wink time (default 150ms) ;flash: Flash time (default 750ms) ;start: Start time (default 1500ms) ;rxwink: Receiver wink time (default 300ms) ;rxflash: Receiver flashtime (default 1250ms) ;debounce:Debounce timing (default 600ms) I'm confused. Digium cards do not support EM trunks, which are older interfaces that include either a two-wire or four-wire audio plus two additional wires called the E and the M leads. So, Wink timing is irrelevant (unless I'm misunderstanding your question). ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
Correct. Incoming DID calls on the EM/Wink channels fail about 1/2 to 1/3 of the time. Brian McSpadden wrote: I assume the defaults do not work? I've successfully used the defaults with Avaya and Mitel switches with no problems. On Fri, 18 Feb 2005 10:04:09 -0600, Eric Wieling [EMAIL PROTECTED] wrote: Does anyone know the default EM Wink timings for Nortel DID ports? The default settings on Asterisk are: ;prewink: Pre-wink time (default 50ms) ;preflash:Pre-flash time (default 50ms) ;wink:Wink time (default 150ms) ;flash: Flash time (default 750ms) ;start: Start time (default 1500ms) ;rxwink: Receiver wink time (default 300ms) ;rxflash: Receiver flashtime (default 1250ms) ;debounce:Debounce timing (default 600ms) ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
Rich Adamson wrote: Does anyone know the default EM Wink timings for Nortel DID ports? The default settings on Asterisk are: ;prewink: Pre-wink time (default 50ms) ;preflash:Pre-flash time (default 50ms) ;wink:Wink time (default 150ms) ;flash: Flash time (default 750ms) ;start: Start time (default 1500ms) ;rxwink: Receiver wink time (default 300ms) ;rxflash: Receiver flashtime (default 1250ms) ;debounce:Debounce timing (default 600ms) I'm confused. Digium cards do not support EM trunks, which are older interfaces that include either a two-wire or four-wire audio plus two additional wires called the E and the M leads. So, Wink timing is irrelevant (unless I'm misunderstanding your question). The Digium Tx00P and TE*xxxP support EM Wink. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
On February 18, 2005 12:32 pm, Rich Adamson wrote: I'm confused. Digium cards do not support EM trunks, which are older interfaces that include either a two-wire or four-wire audio plus two additional wires called the E and the M leads. So, Wink timing is irrelevant (unless I'm misunderstanding your question). Uh... my zapata and zaptel.conf exmaple files both show EM signaling options. I'm no telephony expert but I though that EM signaling was just buried in the RBS bits like any other CAS T1 signaling. -A. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
Hi, Il giorno ven, 18-02-2005 alle 12:44 -0600, Eric Wieling ha scritto: The Digium Tx00P and TE*xxxP support EM Wink EM is analogue, not digital... digium cards support it over digital, like they supports fxs/fxo to a channel bank . same from EM The interface described here is analogue, afaik. Matteo. -- ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
Brancaleoni Matteo wrote: Hi, Il giorno ven, 18-02-2005 alle 12:44 -0600, Eric Wieling ha scritto: The Digium Tx00P and TE*xxxP support EM Wink EM is analogue, not digital... digium cards support it over digital, like they supports fxs/fxo to a channel bank . same from EM The interface described here is analogue, afaik. Well it's coming on a T-1. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
Eric Wieling wrote: Rich Adamson wrote: Does anyone know the default EM Wink timings for Nortel DID ports? The default settings on Asterisk are: ;prewink: Pre-wink time (default 50ms) ;preflash:Pre-flash time (default 50ms) ;wink:Wink time (default 150ms) ;flash: Flash time (default 750ms) ;start: Start time (default 1500ms) ;rxwink: Receiver wink time (default 300ms) ;rxflash: Receiver flashtime (default 1250ms) ;debounce:Debounce timing (default 600ms) I'm confused. Digium cards do not support EM trunks, which are older interfaces that include either a two-wire or four-wire audio plus two additional wires called the E and the M leads. So, Wink timing is irrelevant (unless I'm misunderstanding your question). The Digium Tx00P and TE*xxxP support EM Wink. ___ i've not tested the TE4xxP yet, but the T400P does EM Immediate start also. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
On February 18, 2005 12:32 pm, Rich Adamson wrote: I'm confused. Digium cards do not support EM trunks, which are older interfaces that include either a two-wire or four-wire audio plus two additional wires called the E and the M leads. So, Wink timing is irrelevant (unless I'm misunderstanding your question). Uh... my zapata and zaptel.conf exmaple files both show EM signaling options. I'm no telephony expert but I though that EM signaling was just buried in the RBS bits like any other CAS T1 signaling. When I responded to Eric's original post, it sounded like he was trying to interface to an older pbx trunk interface (physical interface). Those physical EM interfaces were as described above (each had either four or six wires). What the original post didn't say was the interface to the non-asterisk pbx was a T1, and one (or more) of the channels were configured for EM signaling. Completely different then a physical EM interface. (Someone else had asked about a physical interface not more then a couple of weeks ago, so the mind was oriented along those lines.) ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
Rich Adamson wrote: On February 18, 2005 12:32 pm, Rich Adamson wrote: I'm confused. Digium cards do not support EM trunks, which are older interfaces that include either a two-wire or four-wire audio plus two additional wires called the E and the M leads. So, Wink timing is irrelevant (unless I'm misunderstanding your question). Uh... my zapata and zaptel.conf exmaple files both show EM signaling options. I'm no telephony expert but I though that EM signaling was just buried in the RBS bits like any other CAS T1 signaling. When I responded to Eric's original post, it sounded like he was trying to interface to an older pbx trunk interface (physical interface). Those physical EM interfaces were as described above (each had either four or six wires). What the original post didn't say was the interface to the non-asterisk pbx was a T1, and one (or more) of the channels were configured for EM signaling. Completely different then a physical EM interface. (Someone else had asked about a physical interface not more then a couple of weeks ago, so the mind was oriented along those lines.) The original setup was: CLEC CT1 - Channel Bank - (analog) - Nortel PBX. Current setup is: CLEC CT1 - Astrisk - CT1 - Channel Bank (analog) - Nortel PBX. The Nortel does not have T-1 interfaces in it and the company is unwilling to buy a T-1 card for the Nortel. Only 4 channels of the T-1 are EM Wink (they are for DIDs), the rest of the channels are various other things. For the voice channels that we care about we terminate the channels into Asterisk. For channels we don't care about we use the Zappel DACS stuff to just patch the channels thru. Channels 9 - 12 are the EM Wink channels. This is what we see: Failure #1: -- Starting simple switch on 'Zap/9-1' Feb 18 16:13:25 WARNING[1965]: chan_zap.c:4723 ss_thread: getdtmf on channel 9: Operation now in progress -- Hungup 'Zap/9-1' -- Starting simple switch on 'Zap/10-1' Feb 18 16:13:29 WARNING[1966]: chan_zap.c:4723 ss_thread: getdtmf on channel 10: Operation now in progress -- Hungup 'Zap/10-1' Failure #2 -- Starting simple switch on 'Zap/9-1' Feb 18 16:13:25 WARNING[1965]: chan_zap.c:4723 ss_thread: getdtmf on channel 9: Operation now in progress -- Hungup 'Zap/9-1' -- Starting simple switch on 'Zap/10-1' -- Executing NoOp(Zap/10-1, EXTEN=189) in new stack -- Executing Dial(Zap/10-1, Zap/G3/189||g) in new stack -- Called G3/189 In Failure #2 the calls still go thru, as you can see. As you can see when a call suceeds I do not see the getdtmf WARNING message. We have no problems sending calls to the channel bank, only getting them from the CLEC. Since the CLEC used to be directly connected to the channel bank and then to the Nortel I want to get the wink timings for the nortel to see if making Asterisk match the Nortel settings make any difference. --Eric ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
I'm confused. Digium cards do not support EM trunks, which are older interfaces that include either a two-wire or four-wire audio plus two additional wires called the E and the M leads. So, Wink timing is irrelevant (unless I'm misunderstanding your question). Uh... my zapata and zaptel.conf exmaple files both show EM signaling options. I'm no telephony expert but I though that EM signaling was just buried in the RBS bits like any other CAS T1 signaling. When I responded to Eric's original post, it sounded like he was trying to interface to an older pbx trunk interface (physical interface). Those physical EM interfaces were as described above (each had either four or six wires). What the original post didn't say was the interface to the non-asterisk pbx was a T1, and one (or more) of the channels were configured for EM signaling. Completely different then a physical EM interface. (Someone else had asked about a physical interface not more then a couple of weeks ago, so the mind was oriented along those lines.) The original setup was: CLEC CT1 - Channel Bank - (analog) - Nortel PBX. Current setup is: CLEC CT1 - Astrisk - CT1 - Channel Bank (analog) - Nortel PBX. The Nortel does not have T-1 interfaces in it and the company is unwilling to buy a T-1 card for the Nortel. Only 4 channels of the T-1 are EM Wink (they are for DIDs), the rest of the channels are various other things. For the voice channels that we care about we terminate the channels into Asterisk. For channels we don't care about we use the Zappel DACS stuff to just patch the channels thru. Channels 9 - 12 are the EM Wink channels. This is what we see: Failure #1: -- Starting simple switch on 'Zap/9-1' Feb 18 16:13:25 WARNING[1965]: chan_zap.c:4723 ss_thread: getdtmf on channel 9: Operation now in progress -- Hungup 'Zap/9-1' -- Starting simple switch on 'Zap/10-1' Feb 18 16:13:29 WARNING[1966]: chan_zap.c:4723 ss_thread: getdtmf on channel 10: Operation now in progress -- Hungup 'Zap/10-1' Failure #2 -- Starting simple switch on 'Zap/9-1' Feb 18 16:13:25 WARNING[1965]: chan_zap.c:4723 ss_thread: getdtmf on channel 9: Operation now in progress -- Hungup 'Zap/9-1' -- Starting simple switch on 'Zap/10-1' -- Executing NoOp(Zap/10-1, EXTEN=189) in new stack -- Executing Dial(Zap/10-1, Zap/G3/189||g) in new stack -- Called G3/189 In Failure #2 the calls still go thru, as you can see. As you can see when a call suceeds I do not see the getdtmf WARNING message. We have no problems sending calls to the channel bank, only getting them from the CLEC. Since the CLEC used to be directly connected to the channel bank and then to the Nortel I want to get the wink timings for the nortel to see if making Asterisk match the Nortel settings make any difference. Since you're really dealing with signaling bits embedded in the T1 stream, my original comments relative to the physical interface obviously don't apply. In the old EM physical interfaces, the E lead represented signaling coming from the world (sort of E = everyone) to you, and the M lead was you signaling to the world (sort of M = me). The two leads were used to solve loop signaling issues, handle answer supervision, dial pulse signaling, trunk startup, etc. The audio path was either two-wire (eg, pbx interface) or four-wire (eg, LD circuits). I don't recall any config options (from my telephony engineering days) relative to wink duration, or any other timing adjustments. My guess is the asterisk implementation for EM signaling is probably one end of that interface, watching the signaling bits and translating those into something * can use to terminate the call. However, I'll be the first to admit I'm not a programmer and probably wouldn't recognize the code even if I seen it. Highly unlikely it is a fully-baked EM emulation, and even higher probability the code can not source an EM call. Do you know if the incoming DID digits are actually dtmf, or is it possible the digits are dial pulse on the E lead? (I'd have to guess dial pulse from the looks of those messages.) Since I have not personally heard of anyone actually using it, I'd have to guess that resolving the problem will boil down to writing debug code into asterisk, and then writing code that supports your needs. Or, change the interface from asterisk to the Nortel to some other trunking arrangement. Rich ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
Rich Adamson wrote: My guess is the asterisk implementation for EM signaling is probably one end of that interface, watching the signaling bits and translating those into something * can use to terminate the call. However, I'll be the first to admit I'm not a programmer and probably wouldn't recognize the code even if I seen it. Highly unlikely it is a fully-baked EM emulation, and even higher probability the code can not source an EM call. Do you know if the incoming DID digits are actually dtmf, or is it possible the digits are dial pulse on the E lead? (I'd have to guess dial pulse from the looks of those messages.) Since I have not personally heard of anyone actually using it, I'd have to guess that resolving the problem will boil down to writing debug code into asterisk, and then writing code that supports your needs. Or, change the interface from asterisk to the Nortel to some other trunking arrangement. Calls are working SOME of the time. The CLEC is sending DTMF, I've confirmed that. We can source EM Wink calls, we cannot receive them reliability from the CLEC. I'll be playing with the various timing options this evening. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
Hi Eric, Eric Wieling wrote: Does anyone know the default EM Wink timings for Nortel DID ports? The default settings on Asterisk are: ;prewink: Pre-wink time (default 50ms) ;preflash:Pre-flash time (default 50ms) ;wink:Wink time (default 150ms) ;flash: Flash time (default 750ms) ;start: Start time (default 1500ms) ;rxwink: Receiver wink time (default 300ms) ;rxflash: Receiver flashtime (default 1250ms) ;debounce:Debounce timing (default 600ms) I had trouble with wink start (or delayed dial, or various other names for the same thing) a long time ago. I think the switch was an AXE. The spec said as soon as the seize came in I could start the wink. This turned out not to be true. I needed to wait a while, or the PSTN switch could fail to see the wink at all, even if I made it very long. From checking some old code it looks like finally I waited 100ms after the seize before winking. Of course, you have a different switch so the timings might be different, but extending the per-wink a bit seems work a try. Also, 140ms or 150ms is usually the minimum specified wink. It could be something is a bit borderline and a slightly longer wink is needed for reliability. Much longer winks are usually harmless. Another thing might be worth checking, although it seems silly at first sight. Some people pulse wink from 0-1-0, and some from 1-0-1. It seems like nothing should work if this is the wrong way around, but I have seen things half work when this is wrong. Regards, Steve ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] WM Wink timings for Nortel
Steve Underwood wrote: I had trouble with wink start (or delayed dial, or various other names for the same thing) a long time ago. I think the switch was an AXE. The spec said as soon as the seize came in I could start the wink. This turned out not to be true. I needed to wait a while, or the PSTN switch could fail to see the wink at all, even if I made it very long. From checking some old code it looks like finally I waited 100ms after the seize before winking. Of course, you have a different switch so the timings might be different, but extending the per-wink a bit seems work a try. Also, 140ms or 150ms is usually the minimum specified wink. It could be something is a bit borderline and a slightly longer wink is needed for reliability. Much longer winks are usually harmless. Another thing might be worth checking, although it seems silly at first sight. Some people pulse wink from 0-1-0, and some from 1-0-1. It seems like nothing should work if this is the wrong way around, but I have seen things half work when this is wrong. What specific Asterisk options would I use to change these settings in Asterisk? ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
