General
Configuration
Issues
General
How do I started?
As a first step, you will need to register with a VoIP provider, who will provide you with your SIP credentials and domain/proxy information. Media5 Corporation does not suggest a specific public or private VoIP providers. However starting with version 2.2.1.25 the Media5-fone comes with a list of preconfigured SIP providers, which is accessible from the Settings->Configure SIP Accounts page.
For additional providers, you can start searching here (not necessarily updated)
http://www.voip-info.org/wiki/view/VOIP+Service+Providers
Can Media5 Corporation set me up with a SIP account?
As stated above, Media5 Corporation is not a telephony provider; you must previously obtain a SIP account from your organisation IT or from a SIP provider. Media5-fone is open and unlocked, and therefore not attached to any SIP telephony provider.
What are the differences between Full and Free versions?
The Pro version contains all the currently developed features and is currently the flagship product. The Full version has been renamed “Pro” in version 2.5.
The Free version will allow you to test drive the Media5-fone and test interoperability with your VoIP provider. If you are happy with the Free version, you can choose to unlock the Pro features via the application, or remove it from your device and purchase the Pro version directly. With version 2.5, the Free version does not have the 1 minute call limitation anymore.
The Free and Pro versions are 2 distinct applications with distinct distribution numbers from the Apple Store. Please be aware that if you have both applications installed, you will need to configure both. Also note that codecs and features purchased from within the Free version CAN NOT be transferred to the Pro version.
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Free Edition |
Pro Edition |
Codecs |
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G.711 |
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Enhanced G.711, G.722 & iSAC |
O3 |
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| G.729 A&B |
O1 |
O1 |
iLBC |
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Calls |
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Make/Receive Call |
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2nd Call |
O2 |
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Call Waiting |
O2 |
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Call Transfer |
O2 |
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3-way Local Conference Call |
O2 |
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Features |
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Multiple SIP Accounts |
O3 |
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No Ad Banner |
O3 |
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Security (TLS & SRTP w/SDES) |
O4 |
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List of Options
O1: G.729ab codec can be optionally purchased (both for Free and Pro Editions).
O2: Supplementary Telephony Services can be optionally purchased (Telephony Pack) (Free Edition only).
O3: Support of multiple SIP accounts and Add free application can be optionally purchased (Unlock) (Free Edition only).
O4: Support of SIP over TLS and SRTP w/SDES for secure VoIP Calls can be optionally purchased (Secure Comm. Pack) (Free Edition only).
Will this work on all Apple platforms?
The iPhone and iPad are fully supported. For the iPod, you will need a second generation device with an external microphone (see Apple store).
Configuration
Where do I configure the SIP settings?
iPhone/iPod/iPad
Start the application, then press on "More" and then "Settings".
What are my username, server and password settings?
These fields will be given to you by your service provider. For example, you may get the following credentials:
- Username: 123456789
- Domain/Realm: mySipProvider.com
- Outbound proxy: proxy.mySipProvider.net
In your Media5-fone settings, this would be equivalent to:
- Server Address: mySipProvider.com
- Proxy Address: proxy.mySipProvider.net
- Account Name: 123456789
When this is configured, users will be able to reach you at the URI
sip:
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Some providers will not provide an outbound proxy field, and will simply give you a single server address. In the case you may leave the a "Proxy Address" field in the Media5-fone empty.
Can I use empty passwords or no registration at all?
Registration is still required, but the password can be left empty (starting with version 2.3.1.3).
How can I access my VM/Voicemail number?
This depends on your SIP provider. Typically this will be a special feature code, e.g. *XX.
This number needs to be configured under Settings -> Configure SIP accounts -> your account -> Advanced ->Number (in the Voicemail section).
What is my PSTN phone number? Where can I be reached at?
SIP accounts may or may not be tied to PSTN numbers, often referred to as DID numbers or E164 numbers. Contact your service provider to verify if this is available. As stated above, users will also be able to contact you at
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for VoIP and Video calls.
My SIP Provider uses something else than port 5060 for SIP
Go into the Media5-fone options, and change the "Server Port" field to what has been specified by your SIP provider.
Which codecs do you support?
G.711 aLaw/uLaw/8000
G.722/16000 (which will be advertised as 8000 in the SDP)
G.729 (purchasable)
iLBC/8000
iSAC/8000
Enhanced G.711U/8000
Enhanced G.711A/8000
Which codec do you recommend when using the Media5-fone over Wi-Fi?
This will be up to you and what is supported by your SIP provider. G711 a/uLaw is the most widespread codec and provides very good speech quality. If your provider supports enhanced G.711 and G.722, you may experience improved voice quality by using those codecs. But try to first establish calls without any codec modifications, and let your provider decide which codec to use.
Which codec do you recommend when using the Media5-fone over 3G?
iLBC, iSAS, G.729
If I uninstall and then reinstall the Media5-fone, will I have to repurchase it? What about the unlocking feature and the G.729 codec?
If you need to reinstall the Media5-fone, you will not have to repay for the application. The distribution platform from Apple keeps track of your purchases, and "repurchasing" the application will be free of charge. The same is true for customer who have purchased the G.729 codec or unlocked some features from the Free version.
An incoming GSM call puts my VoIP call on hold
The reason behind this behavior is a limitation from the operating system OS4. When the device receives an inbound GSM call, the Media5-fone has a very short time before it is put in background mode and then suspended. The only possibility within this short time frame is to hold the active call.
We understand that this may lead to some confusion for the user who is being put suddenly on hold when the GSM comes in, but unfortunately there are no mechanisms available to use to allow the receiver to properly hold the active call and accept the GSM call.
We hope that Apple will change this behavior with upcoming changes to the operating system.
The application does not re-register immediately when switching from one Wi-Fi network to another
Sometimes when switching to another Wi-Fi network the application will not refresh the registration immediately, so you will not be able to place or receive calls until the registration timer activates the refresh, then the Media5-fone will be registered with the new IP address.
This delay will depend on your registration timeout settings, by default the timer is set to two minutes, but if you have changed the delay to 6 minutes, then it can take up to 6 minutes before re-registering, and then you will be able to place and receive calls again. To speed up the registration, you can close the Media5-fone and then restart it.
When registered in 3G the application does not switch immediately to Wi-Fi when in Wi-Fi coverage
Sometimes, when switching from 3G to a Wi-Fi network, the application will not refresh the registration immediately, so you will stay registered to the 3G network until the registration timer activates the refresh, then the Media5-fone will be registered over the Wi-Fi network.
This delay will depend on your registration timeout settings, by default the timer is set to two minutes, but if you have changed the delay to 6 minutes, then it can take up to 6 minutes before re-registering. To speed up the registration you can close the Media5-fone and then restart it.
I experience 1-way audio or have no audio at all
The usual cause for 1-way audio or no audio problems is that the RTP packets (voice packets) are blocked by either a Router or Firewall. Starting from version 2.5 you can configure a RTP port range that matches your router/firewall settings.
Another possibility is that NAT handling is not being performed by your provider or IP-PBX. For some IP-PBXs, NAT settings need to be explicitly defined for the extensions.
Also please be aware that some providers still require STUN, which is not yet supported by the Media5-fone. Please confirm with your provider if STUN is a requirement (it is usually not).
While connected to an IVR, pressing digits seems to have no effect.
These are referred to as "DTMF"s. Your provider SIP account is configured with a certain type of DTMFs, and using another type will usually have no effect.
The Media5-fone uses NTE/RFC2833 as default DTMFs. If that does not work, try using SIP INFO, and as a last resort In-Band (not recommended). If INFO or NTE do not work, we suggest contacting your service provider. To change the DTMF settings, go into the Media5-fone options, and scroll down to "Method" in the DTMF section.
PSTN calls are not working; I get a "Forbidden" or "User Not Found" message.
Most SIP providers will allow VoIP calls for free, but will charge you a fee if you wish to call a PSTN number. If you get a "Forbidden" message, the most likely cause is that your credit with your service provider has run out. If you get a "User Not Found" message, then either your credit has run out OR you have misdialed the number you were attempting to reach.
It seems the volume for button presses and ring tone are fixed at a rather loud volume. Can we turn those down a little?
The button presses and ring tone volume follow the ringer volume; this can be adjusted through the volume keys located on the side of the iPhone. When the iPhone is put in silence mode, the button presses are muted and the ring tone is in vibration mode.
iPod: No ring in the earphones on incoming calls.
This happens if you unplug your earphones when using the Media5-fone and turn the loudspeaker volume down then plug back the earphones.
To solve this issue just turn up the loudspeaker volume.
iPod 3G: Media5-fone does not detect Bluetooth A2DP’s microphone
The A2DP Bluetooth device is not fully supported by the iPod 3G. Due to this limitation, the device cannot enable the microphone, so the application will display a warning indicating that there’s no microphone connected.
iPod 3G: No warning if the microphone is unplugged when the Media5-fone is in use, then all incoming calls are automatically rejected.
On the iPod 3G, the application displays no warning if the microphone is unplugged while the app is open; any incoming call will be rejected automatically.
iPod 2G & 3G: Plugging/Unplugging the headset when receiving a call freezes or crashes the application.
On some very specific scenarios the application might freeze or crash if the headset is plugged/unplugged when receiving a call.
iPhone 4 with iOS 5: Alerts stack up in the Notification Center when the Media5-fone is running in background.
When setting the Notification Center ON for the Media5-fone application and the Media5-fone is running in background, the Media5-fone application is brought in foreground to the voicemail view. However the “missed call” alert popup can be seen while being in the voice mail view. The alert still has the “Launch” button. If you click on it nothing happens.
What are the upcoming features?
You can follow us on Twitter of Facebook to be kept informed of our new releases and planned features.
Media5-fone on Facebook
Media5-fone on Twitter
I have read all this FAQ, all the user configuration guide and still the Media5-fone will not work with my SIP provider.
Due to the large amount of service providers offering VoIP services, we are unable to test the Media5-fone against all of them. However, our application is based on a SIP compliant implementation and therefore compatible with any SIP compliant proxy. Media5 is committed to support every SIP IP-PBX. Customers facing interoperability issue may contact our Technical Assistance Center. Please use this link to send your support request or use the embedded SIP Traces function from within the Media5-Fone.
http://www.media5corp.com/en/contact-support-iphone
You can also use the application itself to send the support traces to Media5. Simply press on "More", "Sip Traces" and then "Send to Support". Please make sure you provide a description of the issue you are facing along with traces.
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