Avaya 4.2 System Capacity, Extension Capacity, Call Capacity, IP Office Unit Maximum Maximum VCM

Page 10

1.3 System Capacity

System capacity can be separated into two aspects; the number of configurable phone extensions and the number of simultaneous IP phone calls.

Extension Capacity

The maximum number of H323 IP phones supported by an IP Office system is based on that system's maximum capacity for extensions of any type as listed in the table below. To find the capacity for IP phones remove the number of physical non-IP extensions installed on the system, ie. extension ports on the IP Office control unit and any external expansion modules.

IP Office Unit

Maximum

Maximum VCM

 

Extensions

Channels

 

 

 

Small Office Edition

28 Total/16 IP[1]

3[2] or 16[2]

IP406 V2

190

30

 

 

 

IP412

360

60

 

 

 

IP Office 500

272

128

 

 

 

1.The maximum extension capacity is 28 for all phone types but only 16 may be IP phones.

2.Fixed non-adjustable capacity.

Call Capacity

There are a number of situations where the IP Office system needs to provide a voice compression channel in order for an IP phone to make calls. These channels are provided by Voice Compression Modules (VCMs) installed in the IP Office system. The number of VCM channels required and how long the channel is required will depend on a number of factors. For further details see Voice Compression 16.

A simple summary is:

A VCM channel is required during call setup.

The VCM channel is released if the call is to/from another IP device using the same compression codec (the supported VCM codecs are G711, G729 and G723a).

The VCM channel is used for the duration of the call when the call is to/from/via a non-IP device (extension or trunk line).

It should be remembered that VCM channels are also used for calls from non-IP devices to IP lines if those are configured in the IP Office system (IP, SIP and SES lines).

Calls from IP phones to the IP Office voicemail server use a VCM channel.

Note that on Small Office Edition systems with Embedded Voicemail, an additional channel is used for every call to voicemail.

H323 Install

Page 10

IP Office 4.2

15-601046 Issue 14j (10 March 2009)

Image 10
Contents H323 IP Telephone Installation IP OfficeH323 Install IP Office Contents Page Chapter IP Office IP Phones Page IP Office IP Phones ∙ Dhcp versus Static IP Installation∙ Network Assessment What is New IP OfficeSupported Phones H323 IP Supported IP Office Core Phones Models SoftwareCall Capacity System CapacityExtension Capacity IP Office Unit Maximum Maximum VCMPhone Firmware Simple Installation Complex Installation Installation Requirements ∙ Warning a Network Assessment is Mandatory Network Assessment∙ G711 20ms ∙ G723a 80ms ∙ G729 40ms Installing VCM Cards Voice CompressionIP400 VCM Cards IP500 VCM cardsPotential VoIP Problems 10 QoSUser PC Connection ∙ Gigabit EthernetDedicated Plug-Top Power Supply Units Power Supply OptionsSpare Wire Power Options ∙ Avaya 1151D1 Power Supply Unit PSU∙ Power of Ethernet POE Switch 802.3af Power over Ethernet PoE Options∙ Avaya 1152A1 Power Distribution Unit Mid-Span Power Unit Phone 802.3af ClassIP Office Unit Memory Card File Server OptionsIP Office Manager 3rd Party SoftwareTransferring Files to the Card Using File Management Transferring Files to the Card Using TftpControl Unit Memory Card Page Chapter Installation Installation Dhcp Server ∙ o Dhcp ModeIP Phone Software and Settings Files ∙ o Number of Dhcp IP AddressesCreating/Editing the Settings File Manually Creating Extensions ∙ To switch to static address installation Phone ConnectionStatic Address Installation Phone Registration ∙ Password =∙ Ext. = Extension & User Setup Phone SecurityManual Backup/Restore Control Backup RestoreHttp Authentication Specifying the Bruri ValueSeries Phone Backup File Field DescriptionHttp Server Configuration for Backup/Restore Select PropertiesListing Registered Phones Error Messages Chapter Other Installation Options Other Installation Options VPN Remote PhonesLicensing VPNremote Phones on IP Office Installation DocumentationSupported VPNremote Phone Firmware Product Section Title Doc ReferenceConfiguring the IP Phone for VPNremote Enable VPN Phone AllowedVlan and IP Phones Type Description Advantages DisadvantagesVlan and Dhcp Option Data Vlan Dhcp Settings Voice Vlan Dhcp SettingsDhcp Option Description Example setup Overview HP-Switch ConfigurationHP Procurve CLI output Port Vlan Description Voice DataOption Value Example System OverviewPort Vlan 209 Voice Vlan 210 Data Page Chapter Static Administration Options Hold vs Mute Static Administration OptionsEntering Data for Administrative Options ∙ 4601, 4602, 5601, 5602 Speaker keyQOS Option Settings Secondary Ethernet Hub/IR Interface Enable/DisableView Details ∙ If self-test passes Self-Test Procedure∙ If self-test fails Resetting a Phone Resetting a PhoneClearing a Phone Setting the Sson on IP Office Setting the Sson on an IP PhoneSite Specific Option Number ∙ Handset AGC = Switching automatic gain control on/offAutomatic Gain Control ∙ Headset AGC =Chapter Restart Scenarios Restart Scenarios Correct Boot File and Application File Already Loaded Boot File Needs UpgradingNo Application File or Application File Needs Upgrading Page Chapter Infrared Dialling ∙ Dial a Number to Start a Call Infrared Dialling∙ Swap Text Files During a Call Palm Organizer Enabling the IR PortDialling Phone Numbers Windows Pocket PCBeaming Files During a Call Chapter Alternate Dhcp Server Setup Alternate Dhcp Server Setup Select Start Programs Administrative Tools Dhcp Using a Windows Dhcp ServerWindows Dhcp Setup for H323 IP Phones Checking for Dhcp2b. Adding a 242 Option ∙ Data type String ∙ Code2c. Adding a 176 Option Alternate Options Chapter WML Server Setup WML Server Setup What WML is SupportedConfiguring the Xitami Web Server for WAP Testing 4620 WML Browsing Using XitamiInstalling the Web Server IntroductionInstalling Sample WML Pages 4a. Creating a Simple WMLSetting the Home SET WmlportMicrosoft IIS Web Server WML Configuration Apache Web Server WML Configuration∙ Associated extension wml Case 2. Input Box Followed by an a Tag Open URL EntryCase 1. Input Box Followed by an Anchor Tag Case 3. Input Box Followed by a Submit ButtonPage Index Avpp Conflict END of Avaya 4620 IP Phone VCM L2QVLAN PWB SN Sson SET Dnssrvr SET Domain Tftpdir Vlanid Vlantest 43 H323 Install IP Office H323 Install IP Office