Specifications

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Cisco 1751 Router Software Configuration Guide
OL-1070-01
• MTU size is inherited from the main interface.
• IP address for the subinterface is specified.
• RSVP is enabled to use the default value, which is 75 percent of the configured bandwidth.
• Bandwidth is set to 64 kbps.
• Generic traffic shaping is enabled with 32-kbps CIR where committed burst (Bc) = 4000 bits and
excess burst (Be) = 4000 bits.
• Frame Relay DLCI number is specified.
• IP RTP header compression is enabled.
Note When traffic bursts over the CIR, the output rate is held at the speed configured for the
CIR (for example, traffic will not go beyond 32 kbps if CIR is set to 32 kbps).
For more information about configuring Frame Relay for VoIP, refer to the “Configuring Frame Relay”
chapter in the Wide-Area Networking Configuration Guide for Cisco IOS Release 12.1T.
Configure Microsoft NetMeeting for VoIP
VoIP can be used with Microsoft NetMeeting (Version 2.x) when your router is used as the voice
gateway. Use the latest version of DirectX drivers from Microsoft on your PC to improve the voice
quality of NetMeeting.
Configure VoIP to Support Microsoft NetMeeting
To configure VoIP to support NetMeeting, create a VoIP dial peer that has the following information:
• Session Target—IP address or domain name system (DNS) name of the PC running NetMeeting
• CODEC—g711ulaw or g711alaw
Configure Microsoft NetMeeting for VoIP
To configure NetMeeting to work with VoIP, complete the following steps:
Step 1 From the Tools menu in the NetMeeting application, select Options. NetMeeting will display the
Options dialog box.
Step 2 Click the Audio tab.
Step 3 Select the “Calling a telephone using NetMeeting” check box.
Step 4 Enter the IP address of your router in the IP address field.
Step 5 Under General, click Advanced.
Step 6 Select the “Manually configured compression settings” check box.
Step 7 Select the CODEC value CCITT ulaw 8000Hz.