diff --git a/jain-sip-ri/1.3.0-92/_remote.repositories b/jain-sip-ri/1.3.0-92/_remote.repositories
deleted file mode 100644
index 1c147c34..00000000
--- a/jain-sip-ri/1.3.0-92/_remote.repositories
+++ /dev/null
@@ -1,6 +0,0 @@
-#NOTE: This is a Maven Resolver internal implementation file, its format can be changed without prior notice.
-#Tue Jun 09 00:11:05 CST 2020
-jain-sip-ri-1.3.0-91-sources.jar>central=
-jain-sip-ri-1.3.0-91-javadoc.jar>central=
-jain-sip-ri-1.3.0-91.jar>central=
-jain-sip-ri-1.3.0-91.pom>central=
diff --git a/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92-javadoc.jar.sha1 b/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92-javadoc.jar.sha1
deleted file mode 100644
index c8b47e0f..00000000
--- a/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92-javadoc.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-a4527519db95e126ca97078517b5e12f93842c43
\ No newline at end of file
diff --git a/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92-sources.jar.sha1 b/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92-sources.jar.sha1
deleted file mode 100644
index 1dff3ffb..00000000
--- a/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92-sources.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-b59f1151cd3fc21588427c870c2b48157b0f2599
\ No newline at end of file
diff --git a/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92.jar.sha1 b/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92.jar.sha1
deleted file mode 100644
index 396393a0..00000000
--- a/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-7d5228fb711bed1abd9c9c1423ef53bbe88eff9d
\ No newline at end of file
diff --git a/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92.pom b/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92.pom
deleted file mode 100644
index e7148c33..00000000
--- a/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92.pom
+++ /dev/null
@@ -1,189 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<groupId>javax.sip</groupId>
-		<version>1.2.0</version>
-		<artifactId>jain-sip</artifactId>
-		<relativePath>../pom.xml</relativePath>
-	</parent>
-
-	<groupId>javax.sip</groupId>
-	<artifactId>jain-sip-ri</artifactId>
-	<version>1.3.0-91</version>
-	<packaging>jar</packaging>
-
-	<name>jain-sip-ri</name>
-	<url>http://code.google.com/p/jain-sip/</url>
-	<build>
-		<sourceDirectory>../../src</sourceDirectory>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>2.3.2</version>
-				<configuration>
-					<source>1.7</source>
-					<target>1.7</target>
-					<includes>
-                                               <include>gov/nist/javax/sip/**</include>
-                                               <include>gov/nist/javax/sdp/**</include>
-                                               <include>gov/nist/core/**</include>
-                                               <include>javax/sdp/**</include>
-                                       </includes>
-				</configuration>
-			</plugin>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-source-plugin</artifactId>
-				<version>2.1.2</version>
-				<executions>
-					<execution>
-						<id>attach-sources</id>
-						<phase>verify</phase>
-						<goals>
-							<goal>jar</goal>
-						</goals>
-					</execution>
-				</executions>
-			</plugin>			
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-jar-plugin</artifactId>
-				<version>2.4</version>
-				<configuration>
-					<archive>
-						<manifest>
-							<addDefaultImplementationEntries>true</addDefaultImplementationEntries>
-						</manifest>
-						<manifestEntries>
-							<Implementation-Build>${buildNumber}</Implementation-Build>
-						</manifestEntries>
-					</archive>
-				</configuration>
-			</plugin>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-javadoc-plugin</artifactId>
-				<version>2.8.1</version>
-				<executions>
-				        <execution>
-				            <id>attach-javadocs</id>
-				            <phase>verify</phase>
-				            <goals>
-				                <goal>jar</goal>
-				            </goals>
-				        </execution>
-				    </executions>
-			</plugin>
-			<plugin>
-			      <groupId>org.sonatype.plugins</groupId>
-			      <artifactId>nexus-staging-maven-plugin</artifactId>
-			      <version>1.6.2</version>
-			      <extensions>true</extensions>
-			      <configuration>
-				<serverId>mobicents-releases-repository</serverId>
-				<nexusUrl>https://oss.sonatype.org/</nexusUrl>
-			      </configuration>
-			      <executions>
-				<execution>
-				    <id>deploy-to-sonatype</id>
-				    <phase>deploy</phase>
-				    <goals>
-					<goal>deploy</goal>
-					<!--goal>close</goal-->
-					<goal>release</goal>
-				    </goals>
-				</execution>
-			    </executions>
-			</plugin>
-		</plugins>
-		<resources>
-			<resource>
-				<directory>target</directory>
-				<includes>
-					<include>gov/nist/javax/sip/**</include>
-					<include>gov/nist/javax/sdp/**</include>
-					<include>gov/nist/core/**</include>
-					<include>javax/sdp/**</include>
-				</includes>
-				<excludes>
-					<exclude>**/*.java</exclude>
-				</excludes>
-			</resource>
-		</resources>		
-	</build>
-
-	<profiles>
-		<profile>
-			<id>release</id>
-			<build>
-			    <plugins>
-				<plugin>
-				  <groupId>org.codehaus.mojo</groupId>
-				  <artifactId>buildnumber-maven-plugin</artifactId>
-				  <version>1.0</version>
-				  <executions>
-	    			  	<execution>
-				                <phase>validate</phase>
-						<goals>
-						<goal>create</goal>
-						</goals>
-				  	</execution>
-				  </executions>
-				  <configuration>
-				    	<doCheck>false</doCheck>
-				    	<doUpdate>false</doUpdate>
-				  </configuration>
-				</plugin>
-			    </plugins>
-			</build>
-		</profile>
-	</profiles>
-
-	<dependencies>
-		<dependency>
-			<groupId>log4j</groupId>
-			<artifactId>log4j</artifactId>
-			<version>1.2.14</version>
-			<scope>provided</scope>
-		</dependency>
-		<dependency>
-			<groupId>javax.sip</groupId>
-			<artifactId>jain-sip-api</artifactId>
-			<version>1.2.0</version>
-			<scope>provided</scope>
-		</dependency>
-	</dependencies>
-
-	<!-- repositories -->
-	<repositories>
-		<repository>
-			<id>maven2-repository.dev.java.net</id>
-			<name>Java.net Repository for Maven</name>
-			<url>http://download.java.net/maven/2/</url>
-			<layout>default</layout>
-		</repository>
-		<repository>
-			  <id>mobicents-public-repository-group</id>
-			  <name>Mobicens Public Maven Repository Group</name>
-			  <url>https://oss.sonatype.org/content/groups/public</url>
-			  <layout>default</layout>
-			  <releases>
-			    <enabled>true</enabled>
-			    <updatePolicy>never</updatePolicy>
-			  </releases>
-			  <snapshots>
-			    <enabled>true</enabled>
-			    <updatePolicy>never</updatePolicy>
-			  </snapshots>
-		</repository>
-	</repositories>	
-
-	<scm>
-		<connection>scm:git:https://code.google.com/p/jain-sip/</connection>
-		<developerConnection>scm:git:https://code.google.com/p/jain-sip/</developerConnection>
-		<url>https://code.google.com/p/jain-sip/</url>
-	</scm>
-</project>
diff --git a/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92.pom.sha1 b/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92.pom.sha1
deleted file mode 100644
index e13ee007..00000000
--- a/jain-sip-ri/1.3.0-92/jain-sip-ri-1.3.0-92.pom.sha1
+++ /dev/null
@@ -1 +0,0 @@
-6c781b1392cd72b0c2cec3e513c9a728e6ef80fc
\ No newline at end of file
diff --git a/jain-sip-ri/1.3.0-92/m2e-lastUpdated.properties b/jain-sip-ri/1.3.0-92/m2e-lastUpdated.properties
deleted file mode 100644
index 3840b4fe..00000000
--- a/jain-sip-ri/1.3.0-92/m2e-lastUpdated.properties
+++ /dev/null
@@ -1,3 +0,0 @@
-#Tue Jun 09 00:11:05 CST 2020
-central|https\://repo.maven.apache.org/maven2|javadoc=1591632665523
-central|https\://repo.maven.apache.org/maven2|sources=1591631486319
diff --git a/jain-sip-ri/Readme.md b/jain-sip-ri/Readme.md
deleted file mode 100644
index f30915fb..00000000
--- a/jain-sip-ri/Readme.md
+++ /dev/null
@@ -1,17 +0,0 @@
-根据GB28181-2016标准:
-
-联网系统内的IP网络接入设备应支持SIP信令的统一校时,接入设备应在注册时接受来自SIP服
-务器通过消息头Date域携带的授时。
-
-而Data域返回的时间格式为：
-Data: 2020-10-24T12:34:56.789
-
-由于jain-sip-ri内的日期格式采用英式格式，使得DateHeader的输出变成：
-Date: Sat, 24 Oct 2020 12:34:56 GMT
-同时时区也强制变成格林尼治时间。
-
-为此对jain-sip-ri依赖包进行了修改，改为符合国标的格式，增加毫秒的输出，时区改为系统默认。
-
-# 使用方法：
-将“1.3.0-92”文件夹复制到“C:\Users\用户名\.m2\repository\javax\sip\jain-sip-ri”文件夹中，重新编译运行。
-
diff --git a/pom.xml b/pom.xml
index 40973cc9..51db7774 100644
--- a/pom.xml
+++ b/pom.xml
@@ -122,7 +122,9 @@
 		<dependency>
 			<groupId>javax.sip</groupId>
 			<artifactId>jain-sip-ri</artifactId>
-			<version>1.3.0-92</version>
+			<version>1.3.0-91</version>
+			<scope>system</scope>
+			<systemPath>${basedir}/libs/jain-sip-ri-1.3.0-91.jar</systemPath>
 		</dependency>
 		<dependency>
 			<groupId>org.dom4j</groupId>