Zumara SIP FAQ

These FAQ'S are intended to assist customers evaluating Zumara software and those who have recently taken delivery of a system. Please contact us with any other questions.

What is the basic function of the Zumara software?
The Zumara software allows any suitable PC host NIC or LAN adapter/s to act as up to seven LAN endpoints each providing analysis of H.323 or SIP plus simulation of up to seven H.323 UA or SIP UA. Other protocols such as ISDN Q-SIG and SS#7 are also supported by the Zumara software but these require the use of our established Clarinet hardware E1/T1 or Basic Rate ISDN S-T/U interfaces allowing protocol interoperability to be tested. The system can act as an endpoint simulator (including RTP) and a traffic generator. Options are available to generate MOS and PESQ scores for speech quality, support two or fifty full duplex g.729 channels or perform full TTCN protocol conformance tests. The system is used for protocol development, test, analysis, simulation, speech quality measurement and conformance test.

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How do I associate a simulated endpoint with the PC NIC or a LAN adapter?
Double click on the desktop icon ‘Zumara Init’ and press the ‘Edit’ button next to ‘PC Network Adapters Allotment:’ to see a numbered list of all available LAN adapters on your host and all you need to do is to tick the box next to each Zumara Interface and then specify the number of the LAN adapter you wish to associate with this Interface (endpoint). For example: Interface 1 Network Adapter 2, Interface 2 Network Adapter 2, Interface 3 Network Adapter 4. At the end of your configuration you will be asked if you wish to save the changes and to launch a loader with this configuration in order to set up the system which you must do. One PC NIC, one LAN adapter or a combination of LAN adapters may be used to act as up to seven endpoints.
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Do you provide example test profiles to help me get started?
Yes, from the program manager, locate the Zumara program group and then click on 'Zumara' to open the small 'Manager Dialog - 1' control panel. Click 'Profile' in the top left followed by 'New' and then 'LAN' in order to obtain a list of tested template profiles. You will see that you have a choice of monitor profiles, H.323 endpoint simulation with fast start or slow start, SIP simulation with or without proxy and with or without support for g.729 (please note that g.729 support is not included in the free evaluation software). Select the profile which appears closest to your application and you will be asked to associate a protocol filter and an optional statistics filter.

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What is the purpose of the LAN profile (.acp)?
The LAN profile allows you to define how many endpoints you wish to control, which 'Call simulator' (IP profile) you wish to allocate to each LAN interface, The speed of your LAN connection, which addresses on the LAN you wish to monitor, and under the 'Interface spec' button, whether or not you wish to 'Monitor Tx Messages' which will be necessary if these are not repeated on the HUB. If you own Clarinet E1/T1 interfaces or Clarinet ISDN BRI S-T/U interfaces you will be able to select these in your LAN profile as Interface 3 or 4 while you select that Interfaces 1 and 2 (for example) act as LAN endpoints allowing one profile to test protocol interoperability.

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What is the purpose of the IP Profile (.aip)?
The IP profile is automatically created when you select a 'LAN profile' or can be selected manually from the Zumara 'Manager Dialog - 1' panel by choosing 'Profile' followed by 'New IP' and selecting the one that you want from the list provided. It's purpose is to allow full configuration of one LAN endpoint simulating H.323 or SIP. You need to create a new IP Profile for each LAN endpoint that you wish to simulate under the control of a 'master' LAN Profile each of which may control up to seven IP Profiles.

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Where do I configure a unique MAC address or IP address and subnet for my endpoint?
Open your IP Profile from the Zumara 'Manager Dialog - 1' panel by clicking on the 'P IP' button and selecting the one that you wish to edit. This will open an 'IP Profile Editor' panel which may be used to configure everything related to your IP simulation profile. The unique MAC address can be found by clicking on the 'Initialize emulators' button where you will see that the Initialize emulators panel opens with the 'MAC' button pressed and you can enter your desired 'Own Ethernet address' (MAC address) in HEX. If you now click on the 'IP' button you will be able to enter a unique IP address for your endpoint and its associated subnet mask.
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Where do I enter an IP address for my Gateway?
Open your IP Profile from the Zumara 'Manager Dialog - 1' panel by clicking on the 'P IP' button and selecting the one that you wish to edit. With the 'IP Profile Editor' panel open, click on the 'IP' button where you will find an empty box entitled 'Gateway' and here you can enter an IP address for your Gateway. This configuration of a Gateway address relates to an IP profile and is applicable to any upper layer protocol including H.323, SIP, SIP-I and SIP-T all of which are supported in the Zumara software.

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Where do I enter an IP address for my Proxy?
Open your IP Profile from the Zumara 'Manager Dialog - 1' panel by clicking on the 'P IP' button and selecting the one that you wish to edit. With the 'IP Profile Editor' panel open, click on the ' SIP' button where you will find an box entitled 'Proxy' and here you can enter an IP address for your Proxy in the form 'sip:192.168.2.200' for example.

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How do I configure the message used for Registration?
Open your IP Profile from the Zumara 'Manager Dialog - 1' panel by clicking on the 'P IP' button and selecting the one that you wish to edit. This will open an 'IP Profile Editor' panel which may be used to configure everything related to your IP simulation profile including the message used for Registration which may be found by pressing the 'SIP' button followed by the 'Registration' button. Here you will see that you can register up to eight times and if you look at '>> REGISTER 1' which has been selected as denoted by the two arrows, click on the 'Edit' button in order to gain access to the REGISTER message editor panel.

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Is Registration always automatic or can I do this manually?
You can Register either way, the automatic way is described in the FAQ above but if you de-select the eight automatic Register messages and return to the main 'IP Profile Editor' panel you will see a button entitled 'Miscellaneous'. Click on the Miscellaneous button in order to access a range of twelve miscellaneous SIP messages including: REGISTER, INVITE, STATUS, CANCEL, BYE, OPTIONS, SUBSCRIBE, NOTIFY, PRACK and METHOD. All of these may be configured prior to launching a Profile and then launched manually from the real-time 'Misc' options. Select to use 'REGISTER' as your first miscellaneous SIP message and then click on the 'Edit' button to configure as required. When the profile is running the 'Manager Dialog - 1' panel expands to show the interfaces running in the profile. Click the + button to expand the possibilities of each interface and then click DL-IP followed by 'Miscellaneous' to select the pre-configured Register message that you wish to use.

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Can I use authentication?
Yes, open the 'IP Profile Editor' using the method described in the previous FAQ, click on the 'Initialize emulators' button followed by the 'SIP' button and then the 'Authentication' button where you will see that both Inbound and Outbound authentication may be configured. For outbound authentication, click on the 'Add' button to enter a Realm, Username and Password.

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Can I use FQDN (Fully Qualified Domain Name) in place of IP address?
Yes, you need to initialise DNS parameters. Click on the 'TCP/IP' button ('Initialize Emulators' panel of the IP profile editor) followed by the 'resolv.conf' in order to enter a valid domain which will be used in the event of the Zumara not being able to parse or translate a valid IP address from the domain name provided in the 'SIP Authentication' panel.

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How many calls can the Zumara software send and receive?
In the current release, every Zumara endpoint can generate up to fifty communications each with it's own unique message and field content which provides a big advantage when compared to other call generators. At the same time, each Zumara endpoint can respond to fifty incoming communications allowing a maximum of one hundred communications per-endpoint to be in progress at any time. Calls generated by the Zumara may be repeated up to 1 million times with any user defined starting delay, inter-call delay and duration (in seconds).

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Does Zumara support SIP-I over SCTP?
Our development team have released a new stream control transmission protocol (SCTP) alternative to TCP and UDP for VoIP and real-time applications. This will be in high demand for many new applications including SIP-i over SCTP and is available now. 

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