AudioCodes™ MP-20x Telephone Adapter Frequently Asked Questions (FAQs)
AudioCodes Customer Support Page 2
AudioCodes Customer Support Table of Contents Introduction................................................................................................................6 Frequently Asked Questions ....................................................................................7 Web Access ......................................................................................................................
AudioCodes Customer Support List of Figures Figure 1: MP-20x IP Address Pool Allocated to LAN Hosts ................................................................... 7 Figure 2: Enabling Remote Administration (WAN) in the Remote Administration Screen ..................... 8 Figure 3: Selecting Internet Connection Type in the Web Interface ...................................................... 9 Figure 4: Restoring Factory Defaults in the Restore Defaults Screen ...........................................
AudioCodes Customer Support Notice This document provides Frequently Asked Questions (FAQ’s) for AudioCodes MP-20x Telephone Adapter. Information contained in this document is believed to be accurate and reliable at the printing. However, due to ongoing product improvements and revisions, AudioCodes guarantee the accuracy of printed material after the Date Published nor can it responsibility for errors or omissions. Updates to this document and other documents viewed by registered customers at http://www.
AudioCodes Customer Support Introduction This document provides answers to frequently asked questions (FAQs) about AudioCodes MP-20x analog telephone adapter.
AudioCodes Customer Support Frequently Asked Questions Web Access Q1: How must I configure my PC in order to connect to the MP-20x Web interface? A: For an explanation on configuring your PC for connection to MP-20x Web interface, refer to Section “Configuring Network Parameters” in LTRT-52702 MP-20x FXS Telephone Adapter Quick Installation Guide.
AudioCodes Customer Support Q3: Why can’t I access the MP-20x Web interface while connected to the WAN? A: By default, access to the Web interface from the WAN is disabled. ¾ To enable access from the WAN: 1. Logon to the Web interface from the LAN. 2. Access the ‘Remote Administration’ screen (Advanced menu > Remote Administration icon). 3.
AudioCodes Customer Support Q6: Can I use different types of Internet connections such as L2TP, PPTP, and PPPoE? A: Yes. ¾ To change the Internet connection type: 1. Logon to the Web interface from the LAN. 2. Access the ‘Quick Setup’ screen (Quick Setup menu). 3. From the ‘Connection Type’ drop-down list, select the required Internet connection type.
AudioCodes Customer Support Default Configuration Q1: How do I restore MP-20x to factory default settings? A: You can restore MP-20x to default settings using one of the following methods: Web interface: a) Logon to the Web interface. b) Access the ‘Restore Defaults’ screen (Advanced menu > Restore Defaults icon). c) Click OK. Figure 4: Restoring Factory Defaults in the Restore Defaults Screen Telnet: a) Telnet MP-20x from the LAN.
AudioCodes Customer Support SIP Configurations Q1: Which SIP parameters do I have to configure for MP-20x? A: For configuring SIP parameters for MP-20x, refer to the following documents: LTRT-52702 MP-20x FXS Telephone Adapter Quick Installation Guide, Section “Configuring VoIP Parameters” LTRT-50606 MP-20x Telephone Adapter User's Manual Ver. 2.6.
AudioCodes Customer Support VoIP Troubleshooting Q1: How do I troubleshoot SIP calls? A: ¾ To troubleshoot SIP calls: 1. Telnet MP-20x from the LAN. 2. Run the following command: voip_set_log_level 1 Figure 6: Defining Log Level using Telnet 3. Logon to the Web interface. 4.
AudioCodes Customer Support Q2: Why do I hear a fast busy tone after I pick up the phone (even though all SIP parameters have been configured)? A: The fast busy tone heard after the phone is off-hooked may be caused by the following: The SIP user is not registered. To check if your user is registered, perform the following: a) Logon to the Web interface. b) Access the ‘System Monitoring’ screen (System Monitoring menu), and then select the Voice Over IP tab.
AudioCodes Customer Support Q3: Why do I hear a fast busy tone when making outgoing calls (even though SIP parameters have been configured)? A: The fast busy tone may be caused by the Proxy server not been configured with a domain name: ¾ To configure the Proxy with a domain name: 1. Logon to the Web interface. 2. Access the ‘Voice Over IP’ screen (Voice Over IP menu), and then select the Signaling Protocol tab. 3.
AudioCodes Customer Support Regional Settings Q1: The ring back tone and busy tone are unfamiliar. How can I adjust my call progress tone? A: To suite your call progress tones to your geographical location, perform the following: 1. Logon to the Web interface. 2. Access the ‘Regional Settings’ screen (Advanced menu > Regional Settings icon). 3. Select your location for regional settings.
AudioCodes Customer Support Bandwidth Q1: How can I reduce bandwidth utilization for calls from MP-20x? A: It is recommended to use the coder G.729 to reduce bandwidth utilization to the minimum. ¾ To select a lower bit-rate codec: 1. Logon to the Web interface. 2. Access the ‘Voice Over IP’ screen (Voice Over IP menu), and then select the Media Streaming tab. 3. Under the Codecs group, select the required codecs.
AudioCodes Customer Support Q2: How can I improve voice quality when using Emule/BitTorrent on a PC behind MP-20x? A: You must configure MP-20x to prioritize voice packets over data packets. 1. Logon to the Web interface. 2. Open the ‘Traffic Shaping’ screen (QoS menu > Traffic Shaping tab). 3. In the Tx Bandwidth field, enter the upload speed. 4. In the Rx Bandwidth field, enter the download speed. 5.
AudioCodes Customer Support Functionalities Q1: Does MP-20x support special services such as call forwarding, conference calls, and do-not-disturb? A: Yes, MP-20x supports the following supplementary services: Call waiting Call forwarding Do-not-disturb Three-way conferencing Message waiting indication (MWI) Stutter tone These services are configured in the Web interface’s ‘Services’ screen (Voice Over IP menu > Services tab).
AudioCodes Customer Support Q2: What types of fax transport methods are supported by MP-20x? A: MP-20x supports the following fax transport types: Transparent T.38 Voice-Band Data Bypass The fax transport method is configured in the Web interface’s ‘Voice and Fax’ screen (Voice Over IP menu > Voice and Fax tab). Figure 15: Configuring Transparent Fax Transport Method Figure 16: Configuring T.
AudioCodes Customer Support Q3: How do I make a three-way conference call (using Flash Hook Only)? A: ¾ To make a 3-way conference call: 1. Make a call to A, and then press the flash hook button. 2. Make a call to B, and then press the flash hook button again. Flash Hook Only is configured in the Web interface’s ‘Dialing’ screen (Voice Over IP menu > Dialing tab. Under the Key Sequence group, configure the flash hook sequence method. Q4: Does MP-20x support SIP proxy redundancy? A: Yes.
AudioCodes Customer Support Q5: Can MP-20x operate behind a NAT? A: Yes. It is recommended to connect the MP-20x directly to your Cable or ADSL modem. However, if this is not possible, then: If the MP-20x is located behind a router that uses Application Layer Gateway (ALG), then there is no need to make any additional modifications. If ALG is not supported by the router, then it can operate behind the NAT using an external STUN server. ¾ To configure NAT: 4. Logon to the Web interface. 5.
AudioCodes Customer Support Software Upgrade Q1: How do I upgrade the MP-20x software? A: ¾ To upgrade the MP-20x software: 1. Logon to the Web interface. 2. Open the ‘MP20X Firmware Upgrade’ screen (Advanced menu > MP20X Firmware Upgrade icon). Figure 22: Upgrading MP-20x using the Web Interface 3. Click the Upgrade Now button, and then browse to the folder in which the rmt file is located. After loading the rmt file, MP-20x automatically reboots to factory defaults.
AudioCodes Customer Support Q2: How can I automatically upgrade one or more MP-20x devices? A: To automatically upgrade MP-20x, you can locate the firmware (rmt file) on an HTTP/HTTPS or FTP/TFTP server, and then define the URL of this server and the name of the rmt file, as follows: 1. Logon to the Web interface. 2. Open the ‘MP20X Firmware Upgrade’ screen (Advanced menu > MP20X Firmware Upgrade icon). Figure 23: Automatically Upgrading MP-20x using the Web Interface 3.
AudioCodes Customer Support Telnet and Advanced Configuration Q1: Can I manage MP-20x from the Telnet? A: Yes. The LAN interface is open by default. From the PC’s command line, run the following command: telnet Figure 24: Connecting to LAN Interface using Telnet The WAN interface is closed by default. To allow access from the WAN, perform the following: a) Logon to the Web interface.
AudioCodes Customer Support Q3: Why doesn’t MP-20x upgrade from a file in the HTTP server after it is retrieved? A: Open the Configuration file (located on the HTTP server), and then check the version value of the command line /rmt_config/version. The file on the server must have a higher version value than the current version running on MP-20x. ¾ To view the current version in MP-20x: 1. Telnet the MP-20x. 2.
AudioCodes Customer Support MP-20x Telephone Adapter Frequently Asked Questions www.audiocodes.