How can I send a message to a Number that is NOT in my contacts? about tlsharp HOT 1 CLOSED

            var res = await client.SendRequestAsync<TeleSharp.TL.Messages.TLChatFull>(req);

            var link = new ObtenerLinkDTO();

            link.invitacion = new();

            var channelFull = (TeleSharp.TL.TLChannelFull)res.FullChat;
            var retorno = (TeleSharp.TL.TLChatInviteExported)channelFull.ExportedInvite;

            var LinkObtenido = retorno.Link;

            //********************** Guardar en contactos a la lista de usuarios ***************************************
            List<Usuario> users = datosCrearCanalDTO.Users;
            List<int> usersList = new List<int>();
            int[] usersId = new int[datosCrearCanalDTO.Users.Count];

            TLVector<TLInputPhoneContact> vectorInputPhoneContact = new TLVector<TLInputPhoneContact>();

            foreach (var item in users)
            {
                vectorInputPhoneContact.Add(new TLInputPhoneContact
                {
                    FirstName = item.NombreCompleto,
                    LastName = "",
                    Phone = item.Num_Celular
                });
            }

            TLImportedContacts importedContacts = await client.SendRequestAsync<TLImportedContacts>(new TLRequestImportContacts
            {
                Contacts = vectorInputPhoneContact
            });

            TLVector<TLAbsUser> vectorAbsUser = importedContacts.Users;
            foreach (TLAbsUser absUser in vectorAbsUser)
            {
                if (absUser.GetType() == typeof(TLUser))
                {
                    TLUser user = (TLUser)absUser;
                    usersList.Add(user.Id);

                    // Enviar invitación (Link) del grupo
                    //await client.SendMessageAsync(new TLInputPeerUser() { UserId = user.Id }, $"Unete al grupo de prueba del proyecto telegram por el siguiente link. {LinkObtenido}");
                }
            }

            //********************** Anadir personas al Grupo *************************************
            usersId = usersList.ToArray();
            await InviteToChannel(channel.Id, (long)channel.AccessHash, usersId);