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34 lines
1.9 KiB
34 lines
1.9 KiB
// Copyright 2020 Justine Alexandra Roberts Tunney
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// SIP Protocol Method Definitions
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package sip
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const (
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MethodInvite = "INVITE" // Indicates a client is being invited to participate in a call session.
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MethodAck = "ACK" // Confirms that the client has received a final response to an INVITE request.
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MethodBye = "BYE" // Terminates a call and can be sent by either the caller or the callee.
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MethodCancel = "CANCEL" // Cancels any pending request.
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MethodOptions = "OPTIONS" // Queries the capabilities of servers.
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MethodRegister = "REGISTER" // Registers the address listed in the To header field with a SIP server.
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MethodPrack = "PRACK" // Provisional acknowledgement.
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MethodSubscribe = "SUBSCRIBE" // Subscribes for an Event of Notification from the Notifier.
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MethodNotify = "NOTIFY" // Notify the subscriber of a new Event.
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MethodPublish = "PUBLISH" // Publishes an event to the Server.
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MethodInfo = "INFO" // Sends mid-session information that does not modify the session state.
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MethodRefer = "REFER" // Asks recipient to issue SIP request (call transfer.)
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MethodMessage = "MESSAGE" // Transports instant messages using SIP.
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MethodUpdate = "UPDATE" // Modifies the state of a session without changing the state of the dialog.
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)
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