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|
"
(C) 2010-2011 by Holger Hans Peter Freyther
All Rights Reserved
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"
Osmo.SIPCall subclass: SIPMTCall [
| remoteLeg sdp_alert msc mscIdentity |
<category: 'OsmoMSC-Call'>
<comment: 'I represent a SIP terminated call. It is called Mobile
Terminated to stay with the GSM speech.'>
msc: aMsc [
<category: 'creation'>
msc := aMsc
]
mscIdentity: anIdentity [
mscIdentity := anIdentity
mscIdentity usedBy: self.
]
remoteLeg: aLeg [
<category: 'creation'>
remoteLeg := aLeg.
]
remoteLeg [
^remoteLeg
]
netTerminate [
<category: 'external'>
"The other side of the call has terminated, we need to
clean up things."
remoteLeg := nil.
self releaseMscIdentity.
self terminate.
]
sessionRedirect: aContact [
| newLeg |
remoteLeg ifNil: [^self].
self releaseMscIdentity.
newLeg := msc selectRedirectFor: self to: aContact.
newLeg isNil
ifTrue: [
self terminateRemote]
ifFalse: [
remoteLeg changeRemoteLeg: newLeg.
remoteLeg := nil].
]
sessionNew [
"We now have connected call, tell the other side."
remoteLeg isNil
ifFalse: [remoteLeg netConnect]
ifTrue: [self terminate].
]
sessionFailed [
"We have failed to connect things, tell the other side."
self terminateRemote.
]
sessionEnd [
"The session is now disconnected, tell the other side."
self terminateRemote.
]
terminate [
self releaseMscIdentity.
^super terminate
]
sessionNotification: aNot [
| code |
"The session has some information. We will use it to tell
the other leg of the connection."
code := aNot code asInteger.
((code = 180) or: [code = 183]) ifTrue: [
remoteLeg isNil ifFalse: [
sdp_alert := aNot sdp.
remoteLeg netAlerting]].
]
terminateRemote [
remoteLeg isNil
ifFalse: [remoteLeg netTerminate. remoteLeg := nil].
self releaseMscIdentity.
]
sdp [
<category: 'audio'>
^ sdp_result
]
sdpAlert [
<category: 'audio'>
^ sdp_alert
]
releaseMscIdentity [
mscIdentity ifNotNil: [mscIdentity usedBy: nil. mscIdentity := nil].
]
]
|
