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V3000 drops call if picked up on 1st ring

mswann60_1
Advisor

V3000 drops call if picked up on 1st ring

Any ideas?

13 REPLIES
bosoxfan
Trusted Contributor

Re: V3000 drops call if picked up on 1st ring

Hi.

What version of software are you running? also, where is call going? out an analog line card port or out a PRI port? are calls incoming or outgoing?

 

mswann60_1
Advisor

Re: V3000 drops call if picked up on 1st ring

Analog in/out the V3000 ports

Incoming call

6.5.22, sip enabled.

Phones are connected to a 3C10115 card

3C1040A handsets

 

It also echo's intermittently.

merlin215
Valued Contributor

Re: V3000 drops call if picked up on 1st ring

 the calls go to an Aa or direct to an extension via the auto extension fields in the port settings ?

Are they mapped lines ?

Are the lines shared with faxes / alarms etc . ?

bosoxfan
Trusted Contributor

Re: V3000 drops call if picked up on 1st ring

Since it is analog, can you go into the PSTN Gateway Confguration, click on Analog Line CArds, click on a card.

What is the timeout value? I am thinking that the timeout is around 6 seconds so it is going to

the call coverage (if any).... if it is 6 seconds, then change timeout value to 24 seconds.

 

Just a suggestion.. need more information

mswann60
Frequent Advisor

Re: V3000 drops call if picked up on 1st ring

OK, time to pick up this issue.

 

We changed the time out to 24 seconds last october, no improvement.

 

Here is a typical pots line setup

 

Modify tab:

 

Card Type:   POTS   MAC Address:   00:e0:bb:1c:61:25   Channel :   1   Name:     Extension :     Silence Suppression:   OnOffDefault (Off)   Trunk to Trunk:   RestrictedUnrestricted   Disable Caller ID:     Pulse Dialing:   OnOffDefault (Off)   NOTE: Pulse Dialing is not applicable for H.323               Open      Closed      Lunch      Other Auto Extension:          Time Out:           Bandwidth Considerations   Set All For Low Bandwidth Connection Compression Audio Compression     Default (None - G711)None - G711Med - ADPCMHigh - G729   Conference Disabled   Periodic Status Message Disabled (Time + Date Unicast Enabled)

 

 

Status tab:

 

NOTE: The Dialog Refresh and Show DTMF Digits values you select will apply to all device status pages   MAC Address:   00:e0:bb:1c:61:25[1]   Name:   Line Card Port   Extension:   700   Status:   Idle   Software Version:   S6_0_58   Dialog Refresh:   Manual5 seconds10 seconds15 seconds30 seconds60 seconds   Time Last Seen:   20111010:083432   Error Count:   3   Error Code:   0x3004   POTS State:   0x1   POTS Init:   0x0   Ring State:   0x0   Loop State:   0x0   Performance Data:   190C 002F 7A25 A7A8 0008
0000 00BB 0049 0008 001D
0018 0000 0000 0000 0000
0000 0000 0000 0000 0000
0000 0003 3004 0000 0001
0000 0000 0000 0008 0914
0001 300E
  Debug Data:   98C5 085B 085C 085D 0000
0000 FFFF FFFF 98C5 085B
085C 085D 0000 0000 FFFF
FFFF
  Actor Data:   State:Ready;Msg:deviceStatus;P
ort(Id):pDeviceInterface(0);
  Details of last 5 calls (most recent first):   Show DTMF digits Call Direction


Duration


Called party


Calling party


Disconnect


DTMF Digits


Compression


Incoming 50 101   Received   Mu-Law Incoming 483 101   Not Received   Mu-Law Incoming 4 102   Not Received   Mu-Law Incoming 14 102   Not Received   Mu-Law Incoming 12 101   Not Received   Mu-Law  

 

 

mswann60
Frequent Advisor

Re: V3000 drops call if picked up on 1st ring

Advanced Setting Tab:

 

MAC Address: 00:e0:bb:1c:61:25[1]         Audio Level Controls     Default           Audio Input Gain(dB):   Mute-10-9-8-7-6-5-4-3-2-1012345678910 3           Audio Output Gain(dB):   Mute-10-9-8-7-6-5-4-3-2-1012345678910 3           DTMF Output Level(dBm):   -14-12-10-8-6-4-20 -4           Call Progress Output Level(dBm):   -30-28-26-24-22-20-18-16-14-12-10-8-6-4-20 -14       Line Interface Controls     Default           Minimum On-Hook Time(msec):   1600           Minimum Off-Hook Time(msec):   1000           Flash-Hook Pulse(msec):   350           Supervisory Disconnect Pulse Minimum(msec):   600           Caller-ID Receiver:   Bellcore GR-30-COREETSI FSKETSI DTMFBritish Telecom SIN 242 Bellcore GR-30-CORE           Dial Tone Detection for CO Line Access:   Enabled      

 

 

IP settings tab:

 

MAC Address:   00:e0:bb:1c:61:25[1]   Name:   Line Card Port   Extension Number:   700     IP Settings Reported By Device   Manually Assigned Ip Settings   IP Address:   0.0.0.0   SubNet Mask:   255.255.255.0   Default Gateway:   192.168.1.1   Binding Protocol:    Ethernet  IP   IP Address:     SubNet Mask:     Default Gateway:     NCP IP Address:   192.168.1.15   NAPT Device - Public IP Address:  
 

mswann60
Frequent Advisor

Re: V3000 drops call if picked up on 1st ring

Merlin,

 

It occurs when we are here. The phone rings, if we pick up on the first ring, it drops. We have to wait for the second ring.

 

Also we are back to IP the fly, eliminated the SIP. Elininated the NBX25 frame and just have a 100mb switch for the handsets. Either way it drops if we try to pick up on first ring.

wsbcs01
Occasional Advisor

Re: V3000 drops call if picked up on 1st ring

Try:

1. Isolate NBX with just an 8 port switch, the nbx and 2 phones

2. Do you have access to a chassis and another analog card?

3. Is the binding protocol on the card ethernet or IP?

mswann60
Frequent Advisor

Re: V3000 drops call if picked up on 1st ring

We have 4 analog lines going into the V3000 and handsets are handled by a 16port/100mb swtich. We got rid of our NBX25 chassis a while ago. We did have this problem when also when we had the chassis.

 

Our binding for the PSTN gateway and handsets is ethernet, except IP for where we have a VPN tunnel and use pcXset.

303computers
Occasional Visitor

Re: V3000 drops call if picked up on 1st ring

This happens to us as well.  I've instructed my guys to wait until after the beginning of the second ring.  My tech says it has something to do with the CallerID burst being sent between the first and second ring, and if the call is answered, it kills that burst and somehow kills the call.  

 

Don't know if this helps at all, but thought I'd lend my experience on this one. . . 

 

 

 

bosoxfan
Trusted Contributor

Re: V3000 drops call if picked up on 1st ring

I gotta say that I doubt this is NBX issue, but then again :)

 

can you run a quick test? take your analog line, connect it directly to a phone... then try it. do you

lose call after first ring???

mswann60
Frequent Advisor

Re: V3000 drops call if picked up on 1st ring

I'll give this a try and report.

mswann60
Frequent Advisor

Re: V3000 drops call if picked up on 1st ring

Ok, I think we finally got a hande on this.

 

We replaced an old Dell 2716 switch that had another switch uplinked to it, with a new HP1910 switch, which is an original 3Com design.  In fact, it came in a 3Com box.

 

Its been 2 weeks now, no disconnects  :-)