Q. Who can have a VoIP Phone?
Ans. Any MTNL landline subscriber having a Broadband connection can have a MTNL VoIP phone. If broadband is not availed, PSTN customer can apply for the same.
Q. How does VoIP Phone work?
Ans. With VoIP phone, phone calls are converted to digital data which uses part of the bandwidth that comes with your MTNL Broadband connection.
MTNL VoIP uses 'Voice over Internet Protocol' (VoIP) technology and it's just a great new way to make and receive phone calls using your broadband connection instead of your standard phone line. MTNL converts your phone calls into data that zips through your high-speed broadband connection just like email. It comes out the other end just like a regular phone call. Your callers are unlikely to know that it's any different since it sounds just like a regular phone call.
With MTNL VoIP Service, you can have a additional ‘virtual’ phone line without having to pay for new cabling to your premises.
Ans.There are several advantages using Voice over IP (VoIP), including the availability of advanced features that standard telephone systems are not capable of and the ability to have a phone number usually associated with a particular local area anywhere in the world.
But the biggest single advantage VoIP has over standard telephone systems is cost and especially international calls using VoIP are substantially lower than making calls using traditional telephone networks. Depending on the destination of your call, savings of up to 90-95% are not uncommon. Using our VoIP rates search engine with a database of almost all providers in the world you can, at the click of the button, find the cheapest VoIP provider for your favorite destinations. You will notice that the differences are substantial even between VoIP service providers.
One further advantage, which will become much more pronounced in the very near future with the acceptance of VoIP together with the availability of broadband connections internationally, is that calls between users of the same VoIP system or provider are almost always free of charge to both parties. You can talk as often and as long as you like for free.
Q. What does the Telephone Adapter do?
Ans. The Telephone Adapter is an analogue to digital phone converter. It makes it possible to use your MTNL Broadband connection for additional virtual lines.
Q. Does simultaneous Internet browsing affect VoIP Phone quality?
Ans. The speed of browsing will slightly reduce when VoIP phone is working. Quality of voice through VoIP phone is not affected by Internet Browsing.
Q. Does MTNL VoIP phone really work like a regular line?
Ans.You just plug your phone in to the telephone adapter and make your calls as usual (VoIP to International PSTN/Mobile and MTNL VoIP to MTNL VoIP). There is no need to use a headset or install additional software. However you will not be able to receive calls from any normal PSTN/ Mobile phone at present.
Q. How much bandwidth does a voice call use?
Ans. This depends on which codec you choose when you set up the service. MTNL VoIP service is currently offering a very bandwidth efficient voice coder G.729 which will use only 35Kbps bandwidth for a call.
Q. Does the bandwidth used while making VoIP calls add to my Broadband Bill ?
Ans. The MB usage of VoIP service is not charged.
Q. Are emergency service calls available with MTNL VoIP Service?
Ans. Access to Emergency Services from VoIP phone is not provided. MTNL has provided a primary telephone line for contacting the emergency services so that they can use your geographic telephone number to locate you quickly and easily.
Q. How good is the voice quality?
Ans. Voice clarity is much better than a mobile phone and it's unlikely either you or your caller will notice the difference to a normal phone line. Variations in Call Quality may occur with varying international bandwidth conditions.
Ans. Yes, but a few factors have to be kept in mind when using VoIP as your exclusive phone line.
These include:
· If you can't get a phone number in your local area, your neighbors' calls to you will be long distance for them, unless off course they are also VoIP enabled
· If your internet connection is down (power failure, server problems etc), you will lose your phone service as well
· While voice quality is almost as good as with traditional phone lines, there may be occasional glitches such as echoes and slight delays. Not unlike using cellular phones.
· If you have a DSL broadband connection, you will still need a traditional phone line into your home.
· Your phone number will not appear in the traditional phone book or directory assistance.· Downloading a large file off the internet while on the phone can cause significant call degradation, or cut the phone call altogether. This is usually only the case with slower internet connections.
· It may be difficult for some VoIP services to seamlessly connect with the 911 dispatch center or identify the location of Internet Voice 911 callers
