Room Swap Service from Gargona Telecom

[Gargona_Telecom]

Hello! My name is Maxim and I am a representative of Gargona Telecom.

I offer you a modern solution to the problems of your business. Since 2008, our company has been engaged in the number replacement service, which is in high demand in your field.

Our services:

• Substitution of the number for an outgoing call to any, without any restrictions and prohibitions. You will be able to call from other people's numbers of individuals / legal entities / etc. Conduct negotiations and record the conversation immediately on your device.
• Voice changer service with 6 options, from childish and feminine to masculine and rude. It makes it impossible to conduct a fingerprint examination and establish the identity of the caller.

Our advantages:

• Telephony via VOIP (Only an IOS/Android/Windows app is required to use it).
• You independently change the number and make calls, intuitive use of the application.
• Complete anonymity of use, telephony is encrypted with the SRTP protocol, which makes wiretapping and direction finding impossible.
• Our servers and legal entity are located in offshore zone .
• The cheapest billing among competitors from $0.01 per minute.
• Stable performance throughout the year.

For more information about the entire list of services and tariffs for connection, you can find on our website. www.gargona.pw

Contacts for feedback:

PS For active members of the forum, we will provide a couple of free connections for feedback (write in private messages), for the rest, a discount on promo code IAPD 10% off the price on the site until the end of January (call the promo code in the online chat or in the messenger when buying)

 

[Наумов Александр]

Good day!
As I understand it, this program is more likely to draw familiar people than to solve professional problems. Although, you need to verify empirically.
I mean that identification is carried out by imei telephone, as well as through the "umbrella".
How is the protection function implemented in this case?

 

[Gargona_Telecom]

Good day!
As I understand it, this program is more likely to draw familiar people than to solve professional problems. Although, you need to verify empirically.
I mean that identification is carried out by imei telephone, as well as through the "umbrella".
How is the protection function implemented in this case?

Hello! Great question! In fact, communication does not work through your Sim card, but through our PBX, access to which you get through a SIP client like Zoiper or Linphone. In simple terms, you can remove the SIM card from the device in general, and you can still make calls provided that you are connected to the Internet (it does not have to be a smartphone, the same computer or tablet will do). The protection on our part is traffic encryption using SRTP, if this is not enough for you, then using the same "Proxy" or "Vpn" makes you completely anonymous even for us. As for the opportunities for use, I do not agree with you. The whole range of possible situations is difficult to list, but each has its own interest and plans for the service.

 

[Матушкин Андрей Николаевич]

Good evening. How is the call reflected in the detail of the interlocutor?

 

[Gargona_Telecom]

Good evening. How is the call reflected in the detail of the interlocutor?

Hello! It is the one from whom you are calling (replacement). You can independently verify this fact by ordering a callback with a number change on our website.

 

[Матушкин Андрей Николаевич]

It is the one from whom you are calling (replacement).

Good day. If I “drive in” a number, suppose Kazakhstan has a Kazakh number displayed in my interlocutor, then how is it then displayed in detail in the interlocutor as a call from Kazakhstan with the same number?

 

[Демитрий]

F How is your resource adapted to the federal law "On Amending the Federal Law" On Countering Terrorism "and certain legislative acts of the Russian Federation regarding the establishment of additional counter-terrorism measures and ensuring public safety" dated 07.07.2016 N 374-FZ?

 

[Gargona_Telecom]

Good day. If I “drive in” a number, suppose Kazakhstan has a Kazakh number displayed in my interlocutor, then how is it then displayed in detail in the interlocutor as a call from Kazakhstan with the same number?

Everything is right, like a call from Kazakhstan. Even if you are in, say, Estonia.

 

[Демитрий]

Hello! Great question! In fact, communication does not work through your Sim card, but through our PBX, access to which you get through a SIP client like Zoiper or Linphone. In simple terms, you can remove the SIM card from the device in general, and you can still make calls provided that you are connected to the Internet (it does not have to be a smartphone, the same computer or tablet will do). The protection on our part is traffic encryption using SRTP, if this is not enough for you, then using the same "Proxy" or "Vpn" makes you completely anonymous even for us. As for the opportunities for use, I do not agree with you. The whole range of possible situations is difficult to list, but each has its own interest and plans for the service.

Pitfalls of SRTP

SRTP encrypts the payload of RTP packets, but not the header extension. This creates a vulnerability because the header extension in the RTP packet may contain important information, for example, the sound levels of each packet in the media stream. Potentially, this may be familiar to an attacker that two people are communicating on the network — the privacy of the conversation may be compromised. This circumstance was considered in the IETF document. Request for Comments: 6904 , which requires all subsequent implementations of SRTP to encrypt header extensions.

In some cases - for example, a conference with many participants - an intermediary in the form of SFM (Selective Forwarding Mixer) may be necessary in order to optimize the RTP parameters during the forwarding of streams. Such an intermediary violates the end-to-end encryption principle used in peer-to-peer systems; in other words, end devices must “trust” another participant. To work around this limitation, Privacy Enhanced RTP Conferencing (PERC, one of the IETF working groups - translator's note) is working on solutions like double encryption procedures in SRTP . PERCs provide guarantees backed by hop-by-hop and end-to-end encryption in two separate but related contexts.

 

[Gargona_Telecom]

Pitfalls of SRTP

SRTP encrypts the payload of RTP packets, but not the header extension. This creates a vulnerability because the header extension in the RTP packet may contain important information, for example, the sound levels of each packet in the media stream. Potentially, this may be familiar to an attacker that two people are communicating on the network — the privacy of the conversation may be compromised. This circumstance was considered in the IETF document. Request for Comments: 6904 , which requires all subsequent implementations of SRTP to encrypt header extensions.

In some cases - for example, a conference with many participants - an intermediary in the form of SFM (Selective Forwarding Mixer) may be necessary in order to optimize the RTP parameters during the forwarding of streams. Such an intermediary violates the end-to-end encryption principle used in peer-to-peer systems; in other words, end devices must “trust” another participant. To work around this limitation, Privacy Enhanced RTP Conferencing (PERC, one of the IETF working groups - translator's note) is working on solutions like double encryption procedures in SRTP . PERCs provide guarantees backed by hop-by-hop and end-to-end encryption in two separate but related contexts.

Unfortunately, all systems have their own vulnerabilities.
In our case, SRTP is used to encrypt your voice, and the information that you transmit and receive from the interlocutor. In any case, access to the network where you are located is necessary to crack your conversation channel. Roughly speaking, you have to connect with a “hacked” wifi and use its network to conduct your negotiations. At the same time, the “hacker" must intercept the data packets transmitted by your smartphone / tablet / computer. The situation is certainly rare, but not impossible. But even if he can identify packets with an encrypted voice, the only thing that the villain can understand is when you speak and when you are silent. We use this particular protection protocol for stable voice transmission, without stuttering or interruption, and at the moment this is the most optimal means of encrypting IP telephony.

But for us even this is a vulnerability and we are developing additional means of protecting our service!