SPA3102 voip to pstn gateway - 'voip answer delay' affecting outbound & inbound

[voip3102]

I've tried to search this forum but couldn't find my problem discussed. So I'm posing it here, hoping someone will have a solution.

I have my configuration like this

SPA3102(FXO)<---> PSTN Line
SPA3102(FXS) <----> Analog Phone
SPA3102(WAN)<---> ADSL Modem/Router

I'm registered with the same VSP on both Line 1 and PSTN Line tabs, but with different SIP ports.

I've have every call scenario working. But I've one problem due to teh 'Voip Answer Delay' parameter in the 'PSTN Line' tab.

Case 1:
Voip Answer Delay = 0
When I make an outgoing PSTN call with the phone connected to FXS, I get the PSTN ringing tone almost immediately. Good.

Problem:
But with this setting, inbound voip calls are answered immediately. The phone connected to the FXS DOES NOT ring as the gateway answers the call automatically

Case 2:
Voip Answer Delay = 10
Problem:
When I make an outgoing PSTN call with the phone connected to FXS, I get the PSTN dial tone, but when I dial out a number I get ringing tone from the SPA3102, not from the PSTN line. And only after 10 secs has elapsed does the actual PSTN ringing tone is heard.

But with this setting, inbound voip calls are not answered immediately. The phone connected to the FXS DOES ring. If I don't pick the phone the gateway auto answers after 10 secs. Good.


Bottomline is: I want inbound voip calls to ring for sometime before gateway auto answers, and for outbound PSTN calls I don't want the delay in dialing out to PSTN line.
I would really appreciate if somebody can propose a solution for this problem.

Many Thanks.

[hwittenb]

I would leave the Voip Answer Delay at zero but either remove the credentials on the PSTN tab or set it to Register No. On the User 1 tab, which is for the Line 1 credentials I would set Cfwd No Ans Dest to gw0. I would set the Cfwd Delay to the number of seconds you wish the delay before the call forward to gw0 which will give dial tone or a prompt for a password depending on your settings.

It sounds as if your voip provider is sending the call to your multiple address registrations and ringing until the first one answers which is the registration on the pstn line.

If you have outgoing calls (PSTN to voip) (using the pstn-to-voip gateway) then you need the credentials on the PSTN tab, but your provider needs to allow outgoing calls without registration (Make Call Without Reg).

[hunok99]

Hi Guys!
Just trying to fallow, what is that you guys talk here.....! I'm still learning!
This is my setup:
SPA in EU and the US, all set with FWD and all 4 accounts has IPKALL number assigned.
Incoming calls on PSTN port in EU is S0 to Line 1 on SPA in US.
To FXO port in the US is plugged a PAP2's VoipDiscount dial tone, so if someone calls my user name on VoipDiscount I'm able to answer on the the phone in FX port and this way I'm able to use the PAP2's Voip Discount account on from any land line or cellphone.
1 more thing I'd like to try is the following:

• When the incoming PSTN call from the EU SPA is forwarded to the US SPA's Line 1 I'd like to have it forwarded to my cell using the VoipDiscount account set on gw1.

This is what I've done under USER1 tab:

Call Forward Settings
Cfwd All Dest: blank
Cfwd Busy Dest: blank
Cfwd No Ans Dest: 001mycellnumber@gw1
Cfwd No Ans Delay: 20

As a test call I had to use the IPKALL number of the LINE1 and after the 20 sec delay I get the slow busy tone - the call doesn't ring my cell.
Any advise?
Thanks a lot!

[hwittenb]

Originally Posted by hunok99

When the incoming PSTN call from the EU SPA is forwarded to the US SPA's Line 1 I'd like to have it forwarded to my cell using the VoipDiscount account set on gw1.[/list]This is what I've done under USER1 tab:

Unless you incoming voip provider supports it (FWD doesn't) the only call forwarding you can do with an incoming call to Line 1 on the SPA3102 is to gw0. If you have a PAP2 plugged into the FXO port then you should be able to send the call over that with a cfwd no ans dest 001mycellnumber@gw0

[voip3102]

hwittenb,

Thank you so much for your quick reply. I tried out your suggestion regarding not registering in PSTN line, and setting the Cfwd parameters in User 1 tab. My problem is solved now.

Thanks again.

[hunok99]

Originally Posted by hwittenb

Unless you incoming voip provider supports it (FWD doesn't) the only call forwarding you can do with an incoming call to Line 1 on the SPA3102 is to gw0. If you have a PAP2 plugged into the FXO port then you should be able to send the call over that with a cfwd no ans dest 001mycellnumber@gw0

Thanx Howard!
Te way you suggested, is working now, but....
After the "no answer delay" kicks in, there is like a good 5-10 sec mute, until the pap's ring back tone being heard.
Is there anything what can be done about this?

[hwittenb]

I'm not sure I understand the delay (5-10 sec mute) you reference. The VoIP Answer delay impacts the time before the SPA3102 dials the number to the PAP2. The VoIP Answer Delay is usually set to zero (0). After the PAP2 gets the number I guess there will be a call setup delay before you hear anything. The Betamax companies take some time for call setup and that is usually more than 5-10 seconds.

[hunok99]

Originally Posted by hwittenb

I'm not sure I understand the delay (5-10 sec mute) you reference. The VoIP Answer delay impacts the time before the SPA3102 dials the number to the PAP2. The VoIP Answer Delay is usually set to zero (0). After the PAP2 gets the number I guess there will be a call setup delay before you hear anything. The Betamax companies take some time for call setup and that is usually more than 5-10 seconds.

Yes, Voip answ. delay is (0) and the PSTN is (16)
That silence on the caller side is happening between the time when Line 1 stops ringing and starts ringing again through PAP2. I think this is caused by PAP2 being "too slow" to dial the number, because using the same Betamax service straight from SPA's gw1 the sam number rings with 1 sec delay.
I hope I explained it right!

[hwittenb]

OK, I understand now. If you put a handset on the PAP2 and dial the number have you timed how long it takes? Is that timing different from what you are experiencing? You need to figure out if the delay is in the PAP2 or in the SPA3102. Maybe it is in both units.

The only thing left in the SPA3102 is the dial plan timeout which could effect the delay you are talking about. That would probably be the Interdigit Short Timer which has a default of 3 seconds. That's the delay after the last digit is dialed. It is possible to change the Interdigit Short Timer in the dial plan by preferencing the dial plan with S:n, where n is the number of seconds you want to set for the Interdigit Short Timer. I imagine the dial plan we are talking about is the dial plan pointed to by Line 1 VoIP Caller DP: under the voip-to-pstn gateway. This dial plan is usually (xx.). You could try S:1,(xx.) to override the 3-second timer and set it to 1 second.

If I remember you have one of those PAP2 V2's which were made for Vonage and are different from the regular Linksys PAP2 V1 or PAP2T. The PAP2 V2 must have an Interdigit Short Timer too, although documentation is pretty sparce on that box.

[hunok99]

Originally Posted by hwittenb

OK, I understand now. If you put a handset on the PAP2 and dial the number have you timed how long it takes? Is that timing different from what you are experiencing? You need to figure out if the delay is in the PAP2 or in the SPA3102. Maybe it is in both units.

The only thing left in the SPA3102 is the dial plan timeout which could effect the delay you are talking about. That would probably be the Interdigit Short Timer which has a default of 3 seconds. That's the delay after the last digit is dialed. It is possible to change the Interdigit Short Timer in the dial plan by preferencing the dial plan with S:n, where n is the number of seconds you want to set for the Interdigit Short Timer. I imagine the dial plan we are talking about is the dial plan pointed to by Line 1 VoIP Caller DP: under the voip-to-pstn gateway. This dial plan is usually (xx.). You could try S:1,(xx.) to override the 3-second timer and set it to 1 second.

If I remember you have one of those PAP2 V2's which were made for Vonage and are different from the regular Linksys PAP2 V1 or PAP2T. The PAP2 V2 must have an Interdigit Short Timer too, although documentation is pretty sparce on that box.

Howard, I have tried the call straight from tha PAP and just found out, that's my problem! BTW this is the "good" 1st. gen vonage stuff with all the good setting options. So this has the Interdigit Long (10)and Short (3)timer, but changing them does nothing.
What do you think, if the forwarded incoming call from the EU Pstn line was sent to the US PSTN account(and jus set the ring through Line1) instead of Line1? Couldn't be this set somehow to dial myuscell@gw1???
Why is the speed dial @gw1 does the fast dialing like in 1 sec on this Betamax account?
Thanx for your time!