SIP callwaiting


#1

Hey,

Where is the most complete documentation on Sip.conf? I was looking at voip-wiki.org and was unable to figure out how to activate call waiting on a line on a provisioned Sipura.

I don’t know how to set it up. How can I activate call waiting on that line instead of getting voicemail or busy.

Same question for my MGCP lines.

Thanks,

David


#2

I don’t think sip.conf is going to help you figure out how to activate sipura features. If I’m not mistaken though I think it is *56/*57 to activate/deactivate it on their ATAs.

p


#3

[quote=“p_lindheimer”]I don’t think sip.conf is going to help you figure out how to activate sipura features. If I’m not mistaken though I think it is *56/*57 to activate/deactivate it on their ATAs.

p[/quote]

But aren’t features usually controlled by the switch?

David


#4

Sorry for that dumb question, but what you mean by “call waiting” ?

Im not native-english, so sorry for asking, but i dont see what you mean with call waiting".

You mean that a call is on hold while you talk from that phone ?
Or ringing “in the background” ?


#5

[quote=“RichardHH”]Sorry for that dumb question, but what you mean by “call waiting” ?

Im not native-english, so sorry for asking, but i dont see what you mean with call waiting".

You mean that a call is on hold while you talk from that phone ?
Or ringing “in the background” ?[/quote]

If someone calls your extension while you are on the line, instead of getting straight to voicemail the destination hears a Beep and can hit flash to grab the call.

David


#6

Yes and Yes and that is what can be confusing. You can implement plenty of features at the pbx and then the device can implement may as well. And often it may imply both. Depending on how the switch is configured, it may have a dialplan that detects the sip channel is busy with a call and not try to call it unless ‘call waiting’ is enabled as implemented on the switch (AAH/freepbx has such a feature). However, if you turn call waiting on at the switch but the device is not enabled, then it will simply send back a ‘BUSY HERE’ sip message. So you need to make sure it is enable as well at the device…

p


#7

[quote=“dlublink”][quote=“RichardHH”]Sorry for that dumb question, but what you mean by “call waiting” ?

Im not native-english, so sorry for asking, but i dont see what you mean with call waiting".

You mean that a call is on hold while you talk from that phone ?
Or ringing “in the background” ?[/quote]

If someone calls your extension while you are on the line, instead of getting straight to voicemail the destination hears a Beep and can hit flash to grab the call.

David[/quote]

Ah ok, tnx.

Well, normally the asterisk isnt supposed to handle that.
Its the PHONE !

Why ?
Because asterisk isnt “deciding” if a phone is busy or not, the phone is - regarding the setup of the phone (callwaiting=Yes / No).

There should be a setup parameter like this for your phones.
And then the PHONE decides to send back a “busy here” or not, depending on its configuration.

There is a “fake” in asterisk for that (maxlines or so…), but since you dont have it in your configs, its not active anyway - so see your local phones :wink: