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MyPBX  Standard  Administrator  Guide 

 

33 

“Begin  DOD”  as  5500100,  the  corresponding  DOD  will  be  5500100,  5500101, 
5500102, 5500103, 5500104, and 5500105. 

Service Provider 

1)  General Settings 

 

Table 6-11 Service Provider Trunk-General Settings 

General Settings 

Type 

 

Trunk Name 

A unique label to help you identify this trunk. 

Hostname/IP 

Service provider

’s hostname or IP address. 

Default port: 5060.

Don’t change this part if it is not required. 

Maximum Channels 

Control  the  maximum  number  of  outbound  channels 

(simultaneous  calls)  that  can  be  used  on  this  trunk.  Inbound 

calls are not counted against the maximum. Set as 0 to specify 

no maximum. 

Transport 

This will be the transport method used by the SIP Trunk. This 

method is given by the SIP trunk provider.   

Qualify 

Send check alive packets to the sip provider. 

DTMF Mode 

Set default mode for sending DTMF of this trunk.Default setting: 

rfc2833. 

 

2)  DOD Settings 

DOD  (Direct  Outward  Dialing)  means  the  caller  ID  displayed  when  dialing  out. 

Before configuring this, please make sure the provider supports this feature. 

 

 

Figure 6-5 DOD Settings 

 

 

Table 6-12 Service Provider Trunk-DOD Settings 

DOD Settings 

Global DOD 

Global direct outward dialing number. 

Summary of Contents for MyPBX Standard

Page 1: ...Sales Tel 86 592 5503309 E mail sales yeastar com Support Tel 86 592 5503301 E mail support yeastar com Web http www yeastar com Version 20 19 0 47 Revised March 14 2017...

Page 2: ...ovisions of the CE FCC Warranty The information in this document is subject to change without notice Yeastar Information Technology Co Ltd makes no warranty of any kind with regard to this guide inclu...

Page 3: ...t Ports 6 Connection of FXO FXS BRI GSM UMTS CDMA Ports 6 Power Connection 7 Connection Diagram 7 Getting Started 8 Accessing Web GUI 8 Web Configuration Panel 9 User Management 9 Making and Receiving...

Page 4: ...53 Join a Conference Room 53 Manage the Conference 54 Audio Settings 55 System Prompt 55 Custom Prompt 57 Music on Hold 58 Voicemail 60 Voicemail Settings 60 Voicemail to Email 61 How to Check Voicem...

Page 5: ...N Settings 89 VPN Settings 90 DDNS Settings 91 Static Route 92 MyPBX Security 93 Security Center 93 Firewall Rules 94 IP Blacklist 96 AMI Settings 97 Database Grant 98 Alert Settings 99 Certificates 1...

Page 6: ...MyPBX Standard Administrator Guide iv Network Status 113 System Info 114 Reports 115 Call Logs 115 System Logs 115 Packet Capture Tool 116 DAHDI Monitor Tool 117...

Page 7: ...administrators who need to prepare for install configure and operate MyPBX Telephone System In this guide we describe every detail on the functionality and configuration of MyPBX We begin by assuming...

Page 8: ...rators Call Parking Music On Hold Call Pickup Music On Transfer Call Recording OpenVPN Call Routing Paging Zone Paging Call transfer PIN Users Call Transfer PPPoE Call Waiting QoS Caller ID Queue Conf...

Page 9: ...AN port connection Off No LAN port connection WAN Blinking Stable WAN port connection Off No WAN port connection Ports Status Red LED stands for FXO GSM port Orange LED indicates presence of BRI ports...

Page 10: ...ts in the front panel I e the LED lights in the front indicate the connection status of the corresponding ports at the front panel WAN 10 100 Base TX connect one end of an RJ 45 Ethernet cable into th...

Page 11: ...d Packing List If there is any problem please contact your provider Table 2 1 MyPBX Standard Packing List Item Unit QTY Description MyPBX Standard PC 1 MyPBX Standard device unit Power adapter PC 1 Fo...

Page 12: ...line Connection of FXS ports Connect one end of a RJ11 phone cable to the port connect the other end to the analog phone Connection of BRI ports Ambient Temperature to avoid overheating please do not...

Page 13: ...se of MyPBX Step 2 Insert the SIM card Step 3 Connect the antenna Power Connection Connect the power adapter to the MyPBX Standard s powerport and then plug the power socket into an electrical outlet...

Page 14: ...nd account user The user can manage the device by logging in the Web interface Check the factory defaultsbelow IP address http 192 168 5 150 User Name admin Default Password password 1 Start the brows...

Page 15: ...r Management MyPBX Standardsupports 4 user types with different privileges User Privileges Administrator has the highest privilege The administrator can access all pages on MyPBX Standard Web and make...

Page 16: ...lines to FXS BRI ports on MyPBX Standard To extend GSM UMTS CDMA trunk you need to insert the relevant modules to MyPBX and insert SIM card to the module Then the default extensions are able to make o...

Page 17: ...first then click to edit the extension s number FXS Extension Configuration The extension settings are divided into General Settings and Other Settings 1 General Settings Table 4 1 FXS Extension Confi...

Page 18: ...re Codes General Call Pickup Max Call Duration Setup the max cull duration for every call of this extension but it s only valid for outbound calls Enter 0 or leave this blank empty the value would be...

Page 19: ...ther extensions your caller ID will be the number of your extension or dial out via outbound routes just like dialing from your extension Note if callback is enabled in the inbound route the mobility...

Page 20: ...500 choose whisper spy it should dial 91501 to start monitoring If 500 choose barge spy it should dial 92501 to start monitoring If 500 choose general spy it can dial 90501 91501 or 92501 to start mon...

Page 21: ...Settings for Voicemail in the Voicemail Settings have been properly configured before using this feature Pickup Group If this extension belongs to a pickup group any calls that ring this extension can...

Page 22: ...extension recordings Users may log in the MyPBX User Web interface by using their extension number and voicemail PIN as the user name and password respectively Ring Out Check this option if you want t...

Page 23: ...Extension Number When you dial the server with this number the mobile phone gets the permission of the extension For example dialing the other extensions playing the voicemail Ring Simultaneously Whe...

Page 24: ...tart monitoring If 500 choose general spy it can dial 90501 91501 or 92501 to start monitoring Batch Edit VoIP Extensions Users could add VoIP extensions in bulk and batch edit the selected VoIP exten...

Page 25: ...you should set your SIP phone or VoIP gateway as a DHCP client and enable MyPBX DHCP server to set it as a DHCP server 1 The IP phone or VoIP gateway get IP address from MyPBX 2 MyPBX assign an IP add...

Page 26: ...e Secondary NTP Server Set the secondary NTP server to obtain the time Daylight Saving Time Daylight Saving Time settings Time Format Set the time as 12 hour or 24 hour Date Format Set the date displa...

Page 27: ...general preferences program keys configuration and soft keys configuration Figure 5 2 General Settings for Aastra Phone Book You can add contacts on MyPBX or upload a phone book to MyPBX the phone boo...

Page 28: ...h Snom phone Favorite Organization Title Email Birthday First Name Family Name Sub Number Note Upload Phonebook Click to upload a phonebook to MyPBX The file format should be xml Note all the existing...

Page 29: ...d efforts Click to add a TA gateway configure the TA analog gateway s General settings Extensions Codecs LAN Settings and Password then click Figure 5 5 Add a Gateway Select when to reboot the gateway...

Page 30: ...X and an analog line is connected to MyPBX FXO port and PSTN provider Click to edit the PSTN trunk PSTN Trunk Configuration Please check the PSTN line configuration parameters below 1 General Settings...

Page 31: ...larity Detection The call will be considered as hang up on a polarity reversal 3 Answer Detection Answer Detection will help the system to accurately bill your calls If the PSTN trunk could send polar...

Page 32: ...m with your service provider if the line has enabled Caller ID feature If this line does support Caller ID configure these settings to solve this problem Table 6 4 PSTN trunk Caller ID Settings Caller...

Page 33: ...d in outbound rules incoming rules etc E g BriTrunk1 Signaling Set the Signaling method BRI CPE ISDN BRI in TE mode and Point to Point BRI CPE PTMP ISDN BRI in TE mode and Point to multi Point BRI NET...

Page 34: ...this setting Echo Cancellation Disable or enable echo cancellation it is recommended not to turn this off Hide Caller ID If you want others to see your CID please disable this option Codec Set codec a...

Page 35: ...tion Dialplan Called number type Location Number Type Called number identification 4 DOD Settings DOD Direct Outward Dialing means the caller ID displayed when dialing out Before configuring this plea...

Page 36: ...unk requires MyPBX to register with the provider using an authentication name and password Service Provider IP based VoIP trunk A Service Provider VoIP trunk do not require MyPBX to register with the...

Page 37: ...ide the caller ID set in the VOIP trunk page Please note that not all the service providers support this feature Contact your service provider for more information Realm Realm is a string to be displa...

Page 38: ...Direct Outward Dialing Number Associated Extension The extension make call out via BRI Trunk will display the associated DOD Add a DOD Fill in DOD number and choose associated extension then click to...

Page 39: ...annels simultaneous calls that can be used on this trunk Inbound calls are not counted against the maximum Set as 0 to specify no maximum Transport This will be the transport method used by the SIP Tr...

Page 40: ...he Associated Extensions are 100 101 102 103 104 105 with Begin DOD as 5500100 the corresponding DOD will be 5500100 5500101 5500102 5500103 5500104 and 5500105 GSM UMTS CDMA Trunks GSM UMTS CDMA trun...

Page 41: ...imes in succession SIM card will be blocked Rxgain The receive volume The default is 60 Txgain The transfer volume The default is 40 DTMF Detect Mode Detect the DTMF before or after the Echo Cancellat...

Page 42: ...the route are used Notes MyPBX Standard compares the number with the pattern that you have defined in your route 1 If it matches it will initiate the call using theselected trunks If it does not it wi...

Page 43: ...e brackets example 123 is 1 or 2 or 3 Note that multiple numbers can be separated by dots and ranges of numbers can be specified with a dash 1 3 6 8 would match the numbers 1 3 6 7 and 8 dot Wildcard...

Page 44: ...the extensions could call through this outbound route to Selected Box Figure 7 1 Outbound Route Member Extensions 4 Member Trunks Move the trunks that would be used on this outbound route to Selected...

Page 45: ...extension for DID number This field is only valid when you use BRI or VoIP trunk for this inbound router You can only input number and in this field and the format can be xxx or xxx xxx The count of...

Page 46: ...destination when the time does not match the time group assigned Table 7 4 Inbound Route Time Conditions Destination Description End Call Route the incoming calls to end calls the system will auto ha...

Page 47: ...Fax Detection No Detect No attempts are made to auto determine the call type All calls are sent to the defined destination Custom Email Customize an E mail address to receive the faxes You should fir...

Page 48: ...tgoing call If the number of incoming or outgoing call is listedin the number blacklist the caller will hear the following prompt The number you have dialed is not in service Please check the number a...

Page 49: ...ation Parameters General Settings General Settings Number MyPBX Standard treats IVR as an extension you can dial this extension number to reach the IVR from internal extensions Name Set a name for the...

Page 50: ...t 0 1 2 3 4 5 6 7 8 9 Timeout Invalid Select the destination for each key pressing digits 0 9 Timeout and Invalid When the callers press the corresponding key the call will be routed to Extension Voic...

Page 51: ...General Settings General Settings Ring Group Name Used to identify the ring group Ring Group Number This option defines the numbered extension that can be dialed to reach this group Strategy Select an...

Page 52: ...ring group Move the desired ring group members to the Selected Box Figure 9 1 Ring Group Member 3 Destination if No Answer When all members on this group fail to answer the call system will handle the...

Page 53: ...queue Please check the Queue configuration parameters below 1 General Settings Table 10 1 Queue Configuration Parameters General Settings General Settings Name A name for the Queue The name is used fo...

Page 54: ...xample if the queue number is 681 then the dynamic agent can dial 681 to log in or 681 to log out Figure 10 1 Agents 3 Caller Position Announcement Figure 10 2 Caller Position Announcement Table 10 2...

Page 55: ...ould be set onPeriodic Announcementsto guide the callers to press the key Figure 10 4 Events 6 Failover Destination Define the failover action A failover occurs after the user reach the Queue max wait...

Page 56: ...with no agents The default setting is No Ring in Use If set to No the queue will avoid sending calls to members whose devices are known to be in use Agent Announcement Announcement played to the agen...

Page 57: ...fic extension you need to dial 5 extension number on your phone For example make an announcement to extension 500 you need to dial 5500 then the extension 500 will be automatically picked up Paging Gr...

Page 58: ...mber Configure the paging group extension Duplex Paging is typically one way for announcements only Checking this option will make paging duplex allowing all users in the group to talk and be heard by...

Page 59: ...Room Click to delete one Conference Room Please check the Conference configuration parameters below Table 12 1 Conference Configuration Parameters Options Description Extension Use this number to dia...

Page 60: ...es to access IVR menu for conference room Please check the options for conference IVR below Table 12 2 Conference IVR Menu Conference Administrator IVR Menu 1 Mute un mute yourself 2 Lock unlock the c...

Page 61: ...tem prompt in different ways Go to PBX Audio Settings System PromptsSettings to update the system prompt HTTP Auto Mode Recommended Please make sure your MyPBX Standard can access the internet before...

Page 62: ...nch Canada Greek Hungarian Italian Korean Norwegian Persian Polish Portuguese Portuguese Brazil Russian Spanish Spanish Latin Spanish Mexico Swedish Thai Turkish TFTP Method If MyPBX Standard cannot a...

Page 63: ...gz Figure 13 3 Configure Tftpd32 Step3 Update via TFTP 1 TFTP Server fill in IP address of tftpd32 server such as 192 168 6 42 2 File Name enter the name of voice prompt tar file name such as fr tar...

Page 64: ...Note The file size must not be larger than 8 MB and the file must be WAV format GSM 6 10 8 kHz Mono 1 Kb s Alaw Ulaw 8 kHz Mono 1 Kb s PCM 8 kHz Mono 16 Kb s Music on Hold Music on hold MOH is the bus...

Page 65: ...mat GSM 6 10 8 kHz Mono 1 Kb s Alaw Ulaw 8 kHz Mono 1 Kb s PCM 8 kHz Mono 16 Kb s Play a Music on Hold Prompt Choose a Music on Hold file via PBX Audio Settings Music on Hold Prompts and click to play...

Page 66: ...age Time Set the maximum length of a single voicemail message Min Message Time Set the minimum length of a single voicemail message Messages below this threshold will be automatically deleted Ask Call...

Page 67: ...t SMTP Port the default value is 25 Use SSL TLS to send secure message to server If the email sending server needs to authenticate the sender you need to select the check box Note SSL TLS must be sele...

Page 68: ...code to check a specific extension s voicemail is 2 Dial 2 on your phone and enter the voicemail PIN code to access your voicemail The default voicemail PIN number is the same as your extension numbe...

Page 69: ...u can check voicemail on Voicemail page 3 Check Voicemail via Email If you have enabled Voicemail to Email feature you can check voicemail on your email How to Change Voicemail Greetings The default V...

Page 70: ...sy message 6 Press 3 to record your name 7 Press 4 to record your temporary greeting 8 Press 5 to change your password 9 Choose the message that you want to record press to finish the record 10 Press...

Page 71: ...ble15 1 Feature Code General General One Touch Record Default Code 1 A user may initiate or stop call recording by dialing the code during a call Check Extension Voicemail Default Code 2 Users could c...

Page 72: ...ences Table 15 2 Call Parking Preferences Call Parking Preferences Call Parking Default Code 6 Extension range used to park calls Default 690 699 User may park an incoming call on a designated extensi...

Page 73: ...l the called number after hearing a prompt transfer 3 The call will be transferred after the number is dialed Attended Transfer Default feature code 3 1 Dial 3 during the call 2 Dial the called number...

Page 74: ...n pick up each other s call by feature code 4 Figure 15 1 Group Extensions Direct Call Pick The default Direct Call Pickup Extension Pick up feature code is 04 It allows you to pick up a call that is...

Page 75: ...feature that allows the user to put a call on hold at one phone and continue the conversation from any other phone Call parking is activated by feature code For example extension 8010 is in a call but...

Page 76: ...Speed Dial 3 Fill in the Source Number and Destination Number Numberfor the number you want to call Speed Dial Codefor speed dialing number Note Do not forget toadd the outbound dial prefix if you wou...

Page 77: ...dial PIN User feature code default 89 on the phone first then enter a PIN code following by the prompt If the PIN code is correct he could make international calls on the IP phone placed in factory Fi...

Page 78: ...own mobile phones Enabling Callback Callback requires you to enable it on an inbound route When you call in MyPBX through the inbound route and hang up the call MyPBX will call you back and direct you...

Page 79: ...dd Callback Rules You will need to create callback rules when the system should strip or add digits Figure 15 8 Add Callback Rules Table 15 4 Callback Rules Callback Rules Trunk Name Choose the trunk...

Page 80: ...System Access allows someone calling in from outside MyPBX to obtain an internal system dial tone and make calls as if they were using one of the extensions of MyPBX To use DISA a user calls a DISA n...

Page 81: ...when the user is dialing an extension number The default is 5 seconds Member Outbound Routes Used to set the outbound routes that can be access from this DISA Applying to an Inbound Route A DISA can b...

Page 82: ...two trunks Log in MyPBX and go to PBX Advanced Settings DNIS Settings click to create a DNIS Figure 15 11 Add DNIS Trunk Name Choose a Trunk for the DINS Enable DNIS Tick to enable DNIS feature DNIS...

Page 83: ...ok Speed Ringer Impedance Ringer Threshold Current Limiting TIP RING voltage adjustment Minimum Operational Loop Current and AC Impedance as predefined for your country s analog line characteristics T...

Page 84: ...IVR Extensions and Queue Extensions Assign a specific range for each type will help to distinguish and manage those different extensions You could change the default range or redefine it to meet your...

Page 85: ...setting as if the office were closed This override is usually used if the receptionist needs to be away unexpectedly or if the office needs to close due to poor weather Figure 16 3 Day Night Control...

Page 86: ...MyPBX Standard Administrator Guide 80 Figure 16 4 Time Groups Holidays You can set up the holidays here If a time period is configured as both Holidays and office hours it will be treated as Holiday...

Page 87: ...MyPBX Standard Administrator Guide 81 Figure 16 5 Holidays...

Page 88: ...certificate It is No by default TLS Ignore Common Name Set this parameter as No then common name must be the same with IP or domain name TLS Client Method When using MyPBX as TLS client specify the p...

Page 89: ...ciated with outbound SIP messages if the system is in a NAT environment External Host Alternatively you can specify an external host and the system will perform DNS queries periodically This setting i...

Page 90: ...ets over a network or the Internet MyPBX Standard supports G711 a law u law GSM SPEEX G722 G726 G729A ADPCM MPEG4 SPEEX H261 H263 H263P H264 Note If you would like to use G 729 please enter your licen...

Page 91: ...Ringing It is set when the telecom provider needs Usually it is not needed Remote Party ID Whether to send Remote Party ID on SIP header or not Default no Allow Guest Whether to allow anonymous regist...

Page 92: ...l which codec to be used Min Registration Time Minimum duration in seconds of an IAX2 registration The default settings is 60 seconds Max Registration Time Maximum duration in seconds of an IAX2 regis...

Page 93: ...tings Table 18 1 LAN Settings Items Description DHCP If this option is set as yes MyPBX Standard will act as DHCP client to get an available IP address from your local network We don t recommend enabl...

Page 94: ...y default Users should log in MyPBX to enable WAN It supports DHCP Server PPPoE dynamic DNS and Static IP for IP address assignment Note MyPBX does not act as a routerto route the internet packages fr...

Page 95: ...3 Enter the Password Step4 Save the changes Step5 Reboot the device Step6 Check the WAN Status Status Network status DHCP Server Dynamic Host Configuration Protocol DHCP is a network protocol that ena...

Page 96: ...t domain because they are running the same applications An example would be a company that has a lot of VoIP phones connect to an IPPBX The administrator of the network might like to separate the VoIP...

Page 97: ...about the above VPN settings please contact our technical support DDNS Settings Dynamic DNS or DDNS is a method of updating in real time a Domain NameSystem DNS to point to a changing IP address on t...

Page 98: ...cific gateway The default gateway priority of MyPBX from high to low is OpenVPN WAN port LAN port Figure 18 7 Static Route Table 18 3 Static Route Settings Items Description Destination Set the destin...

Page 99: ...s Security Center All the security settings including Firewall Service Port Settings in MyPBX Standard are displayed in Security Center Users could rapidly check and configure the relevant security se...

Page 100: ...etting column Figure 19 3 Security Center Port Firewall Rules Firewalls are used to prevent unauthorized Internet users from accessing private networks connected to the Internet especially intranets A...

Page 101: ...access 2 Common Rules There is no default rule you can create oneas required Figure 19 5 Common Rules Table 19 2 Description of Common Rules Items Description Name A name for this rule e g HTTP Descr...

Page 102: ...ms Description Port The port you want to auto defense for example 8022 Protocol Select the protocol You can select UDP or TCP Rate The maximum packets or connections can be handled per unit time For e...

Page 103: ...wed in 60 seconds 2 IP blacklist The blocked IP address will display here you can edit or delete it as youwish AMI Settings The Asterisk Manager Interface AMI is a system monitoring and management int...

Page 104: ...ion You can set which IP is allowed to log in MyPBX Standard AMI interface Database Grant MyPBX Standard are using MySQL database The 3rd party software can access MySQL via internet Before that you n...

Page 105: ...can setup multiple extension and outbound phone numbers Please separate them by Example 500 9911 if the extension has configured Follow Me Settings the call would go to the forwarded number directly A...

Page 106: ...ve INTERFACE Network interface name IPATTACK effective Certificates MyPBX supports TLS extension Before you register a TLS extension on IP phone you should upload certificates first Figure 19 12 Uploa...

Page 107: ...o that you can search a key word from your IP phone The key word can be a name a mobile number an email or other key words in the phonebook Note it requires that the IP phone should support LDAP featu...

Page 108: ...s and call logs created before the configured days will be moved to the Net Disk Note the shared folder must be based on Windows Operation System Andif it s windows Vista 2008 7 please add Everyone in...

Page 109: ...p files and folders will be created in the shared folder Password Settings It is highly recommended to change the system s password after first login Go to System System Preferences Password Settings...

Page 110: ...light Saving Time The option is disabled by default Enable it when necessary Automatically Synchronize with an Internet Time Server MyPBX Standard will adjust its internal clock to a central network s...

Page 111: ...mware file causing the upgrade fail Upgrade through HTTP On the Firmware Upgrade page chooseHTTP URL Step1 Enter the download link of the update image file Note the HTTP URL should be aBIN file downlo...

Page 112: ...32 server your PC s IP address 2 File Name enter the name of firmware update It should be a BIN file name 3 Click Start to upgrade Figure 20 8 Upgrade through HTTP Backup and Restore MyPBX Standard pr...

Page 113: ...ck to create a new backup Upload a Backup Click to upload a backup Restore To restore MyPBX Standard configuration data upload the backup file to MyPBX Standard and click Reboot the system to take eff...

Page 114: ...re please make sure that the two servers in the failover pair are the same model own the same modules installed in the same slots the same hardware configurations and firmware version Please configure...

Page 115: ...al IP Address The users would communicate with the server with the virtual IP address which is activated only on the current active MyPBX Generally the two MyPBX in the failover pair should configure...

Page 116: ...me The time after which heartbeat keep alive packets do not get response the system would confirm the failure of the other MyPBX If you set this too low you will get the problematic cluster partition...

Page 117: ...CDR and Call Recordings can be checked under Status Reports Extension Status Trunk Status Network Status System Info Extension Status Users could view all the extension status on this page Figure 21...

Page 118: ...ailed trunk registry failed Provider Name Display the trunk name Type Display the trunk type SIP SIP VoIP trunk IAX IAX VoIP trunk SP SIP Service Provider SIP trunk SP IAX Service Provider IAX trunk U...

Page 119: ...I Port Display the relevant physical port of the trunk GSM UMTS CDMA Trunk Table 21 4 GSM UMTS CDMA Trunk Status Status GSM UMTS CDMA trunk status Idle the port is idle Busy the port is in use Failled...

Page 120: ...ndard Administrator Guide 114 System Info The system info product type hardware version firmware version disk usage and memory usage can be viewed under Status SystemStatus System Info Figure 21 4 Sys...

Page 121: ...r can search and filter call data by filter the call logs by call date caller callee trunk duration billing duration status communication type Figure 22 1 Call Log List Search The administrator can se...

Page 122: ...g Save debug information up to 2 log files Tick the option the following picture shows Set the debug level and which IP address to monitor to capture the debug logs Figure 22 3 Debug Preferences Packe...

Page 123: ...ard Administrator Guide 117 DAHDI Monitor Tool This feature is used to monitor PSTN trunks on MyPBX Standard Users could choose a PSTN trunk then start to monitor the trunk Figure 22 5 DAHDI Monitor T...

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